15 Hearty Keto Breakfast Casserole Recipes for Busy Mornings

Kickstart your mornings with hearty, low-carb meals using these 15 keto breakfast casserole recipes.

Packed with protein, healthy fats, and flavorful vegetables, these casseroles are perfect for keeping you full and energized all morning.

From cheesy bacon and sausage bakes to veggie-packed egg dishes, each recipe is designed to satisfy cravings while staying keto-friendly.

Ideal for meal prep, family breakfasts, or weekend brunches, these casseroles are easy to make and customizable to suit your taste.

Enjoy convenient, delicious, and nutrient-rich breakfasts without compromising your ketogenic lifestyle.

15 Hearty Keto Breakfast Casserole Recipes for Busy Mornings

These 15 keto breakfast casserole recipes prove that low-carb mornings can be flavorful, filling, and convenient.

Each casserole combines eggs, cheeses, meats, and vegetables to create a satisfying meal that supports energy and fat-burning goals.

Perfect for busy weekdays, meal prep, or leisurely weekend brunches, these recipes save time while delivering delicious results.

From simple bakes to gourmet-inspired creations, there’s a casserole for every preference.

Start your day with tasty, protein-packed, and keto-friendly breakfasts that keep you on track and energized.

Keto Sausage and Egg Breakfast Casserole

Keto Sausage and Egg Breakfast Casserole is hearty, protein-packed, and perfect for a low-carb breakfast.

Savory sausage, eggs, and cheese blend together to create a creamy, flavorful casserole that’s easy to prepare ahead of time.

It’s ideal for meal prep or feeding a crowd on busy mornings.

Ingredients:

• 1 pound breakfast sausage, cooked and crumbled
• 8 large eggs
• 1/2 cup heavy cream
• 1 cup shredded cheddar cheese
• 1/2 cup chopped green onions
• 1/2 teaspoon garlic powder
• 1/4 teaspoon salt
• 1/4 teaspoon black pepper

Instructions:

• Preheat oven to 350°F (175°C) and grease a 9×13-inch baking dish.
• In a large bowl, whisk eggs, heavy cream, garlic powder, salt, and pepper.
• Stir in cooked sausage, shredded cheese, and green onions.
• Pour mixture into the prepared baking dish.
• Bake for 30–35 minutes until eggs are set and top is golden.
• Let cool slightly before serving.

This casserole is rich, cheesy, and packed with protein.

It’s a perfect keto-friendly breakfast that’s easy to make ahead, satisfying, and delicious.

Keto Spinach and Feta Breakfast Casserole

Keto Spinach and Feta Breakfast Casserole is light, flavorful, and low in carbs.

Fresh spinach, eggs, and creamy feta cheese combine to make a tender, cheesy casserole with a bright, savory flavor.

It’s ideal for breakfast, brunch, or meal prep.

Ingredients:

• 8 large eggs
• 1/2 cup heavy cream
• 1 cup fresh spinach, chopped
• 1/2 cup crumbled feta cheese
• 1/2 teaspoon garlic powder
• 1/4 teaspoon salt
• 1/4 teaspoon black pepper
• 1/4 cup chopped sun-dried tomatoes (optional)

Instructions:

• Preheat oven to 350°F (175°C) and grease an 8×8-inch baking dish.
• Whisk eggs and heavy cream in a large bowl.
• Stir in chopped spinach, feta cheese, garlic powder, salt, pepper, and sun-dried tomatoes.
• Pour mixture into the prepared dish.
• Bake for 25–30 minutes until eggs are set and top is lightly golden.
• Let cool slightly before slicing and serving.

This casserole is cheesy, flavorful, and packed with nutrients.

It’s a perfect keto-friendly breakfast that’s light, satisfying, and easy to make ahead.

Keto Bacon, Cheddar, and Broccoli Casserole

Keto Bacon, Cheddar, and Broccoli Casserole is a savory, low-carb breakfast that’s full of flavor.

Crispy bacon, tender broccoli, and eggs blend with cheese for a creamy, satisfying dish.

It’s ideal for a hearty breakfast or brunch.

Ingredients:

• 6 large eggs
• 1/2 cup heavy cream
• 1 cup shredded cheddar cheese
• 1 cup cooked broccoli florets, chopped
• 6 slices cooked bacon, crumbled
• 1/4 teaspoon garlic powder
• 1/4 teaspoon salt
• 1/4 teaspoon black pepper

Instructions:

• Preheat oven to 350°F (175°C) and grease an 8×8-inch baking dish.
• Whisk eggs and heavy cream in a bowl until smooth.
• Stir in cheddar cheese, broccoli, bacon, garlic powder, salt, and pepper.
• Pour mixture into the prepared dish.
• Bake for 30–35 minutes until eggs are set and the top is lightly golden.
• Let cool slightly before slicing and serving.

This casserole is rich, cheesy, and satisfying.

It’s a perfect keto-friendly breakfast that’s hearty, flavorful, and simple to prepare.

Keto Sausage, Spinach, and Mushroom Breakfast Casserole

Keto Sausage, Spinach, and Mushroom Breakfast Casserole is a savory, nutrient-rich low-carb dish.

Ground sausage, fresh spinach, and sautéed mushrooms combine with eggs and cheese for a hearty, flavorful casserole.

It’s perfect for breakfast, brunch, or make-ahead meal prep.

Ingredients:

• 1 pound ground sausage, cooked
• 1 cup chopped mushrooms, sautéed
• 1 cup fresh spinach, chopped
• 8 large eggs
• 1/2 cup heavy cream
• 1 cup shredded mozzarella cheese
• 1/4 teaspoon salt
• 1/4 teaspoon black pepper

Instructions:

• Preheat oven to 350°F (175°C) and grease a 9×13-inch baking dish.
• In a large bowl, whisk eggs and heavy cream.
• Stir in cooked sausage, sautéed mushrooms, spinach, mozzarella, salt, and pepper.
• Pour mixture into the prepared dish.
• Bake for 30–35 minutes until eggs are fully set and the top is golden.
• Allow to cool slightly before slicing.

This casserole is hearty, cheesy, and packed with flavor.

It’s a perfect keto-friendly breakfast that’s satisfying, nutrient-rich, and easy to make ahead.

Keto Ham and Cheese Breakfast Casserole

Keto Ham and Cheese Breakfast Casserole is savory, cheesy, and perfect for a low-carb start to the day.

Diced ham, eggs, and shredded cheese combine to create a creamy, flavorful, make-ahead breakfast dish.

It’s ideal for busy mornings or brunch gatherings.

Ingredients:

• 8 large eggs
• 1/2 cup heavy cream
• 1 cup diced cooked ham
• 1 cup shredded Swiss or cheddar cheese
• 1/2 teaspoon garlic powder
• 1/4 teaspoon salt
• 1/4 teaspoon black pepper
• 1/4 cup chopped green onions (optional)

Instructions:

• Preheat oven to 350°F (175°C) and grease an 8×8-inch baking dish.
• Whisk eggs and heavy cream in a large bowl.
• Stir in diced ham, shredded cheese, garlic powder, salt, pepper, and green onions.
• Pour mixture into the prepared dish.
• Bake for 25–30 minutes until eggs are set and the top is lightly golden.
• Let cool slightly before slicing and serving.

This casserole is cheesy, savory, and hearty.

It’s a perfect keto-friendly breakfast that’s quick, filling, and great for meal prep or family mornings

Keto Spinach, Feta, and Sun-Dried Tomato Casserole

Keto Spinach, Feta, and Sun-Dried Tomato Casserole is a flavorful, low-carb breakfast dish.

Fresh spinach, tangy feta, and chopped sun-dried tomatoes blend with eggs and cream for a creamy, savory casserole.

It’s perfect for breakfast, brunch, or meal prep.

Ingredients:

• 8 large eggs
• 1/2 cup heavy cream
• 1 cup fresh spinach, chopped
• 1/2 cup crumbled feta cheese
• 1/4 cup chopped sun-dried tomatoes
• 1/4 teaspoon garlic powder
• 1/4 teaspoon salt
• 1/4 teaspoon black pepper

Instructions:

• Preheat oven to 350°F (175°C) and grease an 8×8-inch baking dish.
• In a large bowl, whisk eggs and heavy cream until smooth.
• Stir in spinach, feta, sun-dried tomatoes, garlic powder, salt, and pepper.
• Pour mixture into the prepared dish.
• Bake for 25–30 minutes until eggs are fully set and top is lightly golden.
• Let cool slightly before slicing.

This casserole is creamy, tangy, and packed with flavor.

It’s a perfect keto-friendly breakfast that’s nutritious, filling, and easy to prepare ahead of time.

Keto Zucchini, Bacon, and Cheese Casserole

Keto Zucchini, Bacon, and Cheese Casserole is a savory, low-carb breakfast option.

Tender zucchini, crispy bacon, and shredded cheese combine with eggs and cream for a flavorful, hearty casserole.

It’s perfect for breakfast, brunch, or meal prep.

Ingredients:

• 2 cups zucchini, thinly sliced
• 6 slices bacon, cooked and crumbled
• 8 large eggs
• 1/2 cup heavy cream
• 1 cup shredded cheddar cheese
• 1/4 teaspoon garlic powder
• 1/4 teaspoon salt
• 1/4 teaspoon black pepper

Instructions:

• Preheat oven to 350°F (175°C) and grease a 9×13-inch baking dish.
• Whisk eggs and heavy cream in a large bowl until smooth.
• Stir in zucchini, bacon, cheddar cheese, garlic powder, salt, and pepper.
• Pour mixture into the prepared dish.
• Bake for 30–35 minutes until eggs are fully set and top is golden.
• Let cool slightly before serving.

This casserole is cheesy, savory, and hearty.

It’s a perfect keto-friendly breakfast that’s satisfying, flavorful, and easy to make ahead.

Keto Sausage, Bell Pepper, and Cheese Casserole

Keto Sausage, Bell Pepper, and Cheese Casserole is a colorful, low-carb breakfast dish.

Ground sausage, bell peppers, and shredded cheese blend with eggs for a protein-packed, savory casserole.

It’s ideal for brunch, meal prep, or feeding a crowd.

Ingredients:

• 1 pound ground sausage, cooked and crumbled
• 1 cup diced bell peppers
• 8 large eggs
• 1/2 cup heavy cream
• 1 cup shredded cheddar or mozzarella cheese
• 1/4 teaspoon garlic powder
• 1/4 teaspoon salt
• 1/4 teaspoon black pepper

Instructions:

• Preheat oven to 350°F (175°C) and grease a 9×13-inch baking dish.
• In a large bowl, whisk eggs and heavy cream until smooth.
• Stir in cooked sausage, diced bell peppers, cheese, garlic powder, salt, and pepper.
• Pour mixture into the prepared dish.
• Bake for 30–35 minutes until eggs are set and top is golden.
• Let cool slightly before slicing.

This casserole is hearty, cheesy, and flavorful.

It’s a perfect keto-friendly breakfast that’s filling, delicious, and great for busy mornings.

Keto Mushroom, Spinach, and Swiss Casserole

Keto Mushroom, Spinach, and Swiss Casserole is a savory, low-carb breakfast option.

Sautéed mushrooms, fresh spinach, and Swiss cheese blend with eggs and cream for a creamy, nutrient-packed casserole.

It’s perfect for breakfast, brunch, or make-ahead meals.

Ingredients:

• 1 cup mushrooms, sliced and sautéed
• 1 cup fresh spinach, chopped
• 8 large eggs
• 1/2 cup heavy cream
• 1 cup shredded Swiss cheese
• 1/4 teaspoon garlic powder
• 1/4 teaspoon salt
• 1/4 teaspoon black pepper

Instructions:

• Preheat oven to 350°F (175°C) and grease an 8×8-inch baking dish.
• Whisk eggs and heavy cream in a bowl until smooth.
• Stir in sautéed mushrooms, spinach, Swiss cheese, garlic powder, salt, and pepper.
• Pour mixture into the prepared dish.
• Bake for 25–30 minutes until eggs are fully set and top is lightly golden.
• Let cool slightly before serving.

This casserole is creamy, cheesy, and packed with flavor.

It’s a perfect keto-friendly breakfast that’s nutritious, satisfying, and easy to prepare ahead of time.

Keto Broccoli, Ham, and Cheddar Casserole

Keto Broccoli, Ham, and Cheddar Casserole is a hearty, protein-packed breakfast option.

Tender broccoli, diced ham, and shredded cheddar cheese combine with eggs for a creamy, flavorful casserole.

It’s ideal for meal prep, brunch, or a family breakfast.

Ingredients:

• 2 cups broccoli florets, cooked
• 1 cup diced cooked ham
• 8 large eggs
• 1/2 cup heavy cream
• 1 cup shredded cheddar cheese
• 1/4 teaspoon garlic powder
• 1/4 teaspoon salt
• 1/4 teaspoon black pepper

Instructions:

• Preheat oven to 350°F (175°C) and grease a 9×13-inch baking dish.
• Whisk eggs and heavy cream in a large bowl until smooth.
• Stir in broccoli, ham, cheddar cheese, garlic powder, salt, and pepper.
• Pour mixture into the prepared dish.
• Bake for 30–35 minutes until eggs are fully set and top is golden.
• Let cool slightly before slicing.

This casserole is cheesy, hearty, and flavorful.

It’s a perfect keto-friendly breakfast that’s filling, easy to make ahead, and delicious.

Keto Avocado, Bacon, and Egg Breakfast Casserole

Keto Avocado, Bacon, and Egg Breakfast Casserole is creamy, savory, and packed with healthy fats.

Ripe avocado, crispy bacon, and eggs combine with cheese for a rich, flavorful casserole perfect for a low-carb breakfast.

It’s ideal for brunch or meal prep.

Ingredients:

• 2 ripe avocados, diced
• 6 slices cooked bacon, crumbled
• 8 large eggs
• 1/2 cup heavy cream
• 1 cup shredded cheddar cheese
• 1/4 teaspoon salt
• 1/4 teaspoon black pepper
• 1/4 teaspoon garlic powder

Instructions:

• Preheat oven to 350°F (175°C) and grease an 8×8-inch baking dish.
• Whisk eggs and heavy cream in a large bowl.
• Stir in diced avocado, bacon, cheese, salt, pepper, and garlic powder.
• Pour mixture into the prepared dish.
• Bake for 25–30 minutes until eggs are set and top is golden.
• Let cool slightly before slicing and serving.

This casserole is creamy, cheesy, and packed with healthy fats.

It’s a perfect keto-friendly breakfast that’s satisfying, flavorful, and nutrient-rich.

Keto Mediterranean Breakfast Casserole

Keto Mediterranean Breakfast Casserole is light, flavorful, and low in carbs.

Spinach, olives, sun-dried tomatoes, and feta cheese blend with eggs for a vibrant, savory breakfast casserole.

It’s perfect for brunch or make-ahead meals.

Ingredients:

• 8 large eggs
• 1/2 cup heavy cream
• 1 cup fresh spinach, chopped
• 1/2 cup crumbled feta cheese
• 1/4 cup chopped sun-dried tomatoes
• 1/4 cup sliced black olives
• 1/4 teaspoon salt
• 1/4 teaspoon black pepper

Instructions:

• Preheat oven to 350°F (175°C) and grease an 8×8-inch baking dish.
• Whisk eggs and heavy cream in a large bowl until smooth.
• Stir in spinach, feta, sun-dried tomatoes, olives, salt, and pepper.
• Pour mixture into the prepared dish.
• Bake for 25–30 minutes until eggs are set and top is lightly golden.
• Let cool slightly before slicing and serving.

This casserole is colorful, cheesy, and packed with Mediterranean flavors.

It’s a perfect keto-friendly breakfast that’s fresh, satisfying, and nutrient-rich.

Keto Zucchini, Sausage, and Cheese Breakfast Casserole

Keto Zucchini, Sausage, and Cheese Breakfast Casserole is savory, low-carb, and protein-rich.

Tender zucchini, cooked sausage, and shredded cheese blend with eggs for a creamy, hearty breakfast dish.

It’s ideal for meal prep or weekend brunch.

Ingredients:

• 2 cups zucchini, sliced and lightly sautéed
• 1 pound cooked breakfast sausage, crumbled
• 8 large eggs
• 1/2 cup heavy cream
• 1 cup shredded cheddar cheese
• 1/4 teaspoon salt
• 1/4 teaspoon black pepper
• 1/4 teaspoon garlic powder

Instructions:

• Preheat oven to 350°F (175°C) and grease a 9×13-inch baking dish.
• Whisk eggs and heavy cream in a large bowl.
• Stir in zucchini, sausage, cheese, salt, pepper, and garlic powder.
• Pour mixture into the prepared dish.
• Bake for 30–35 minutes until eggs are fully set and top is golden.
• Let cool slightly before serving.

This casserole is hearty, cheesy, and flavorful.

It’s a perfect keto-friendly breakfast that’s filling, delicious, and easy to prepare ahead.

Keto Broccoli, Cheddar, and Spinach Breakfast Casserole

Keto Broccoli, Cheddar, and Spinach Breakfast Casserole is nutrient-rich, cheesy, and low in carbs.

Tender broccoli, fresh spinach, and shredded cheddar cheese combine with eggs for a creamy, satisfying breakfast dish.

It’s perfect for brunch or make-ahead breakfasts.

Ingredients:

• 2 cups broccoli florets, cooked
• 1 cup fresh spinach, chopped
• 8 large eggs
• 1/2 cup heavy cream
• 1 cup shredded cheddar cheese
• 1/4 teaspoon garlic powder
• 1/4 teaspoon salt
• 1/4 teaspoon black pepper

Instructions:

• Preheat oven to 350°F (175°C) and grease an 8×8-inch baking dish.
• Whisk eggs and heavy cream in a large bowl.
• Stir in broccoli, spinach, cheddar cheese, garlic powder, salt, and pepper.
• Pour mixture into the prepared dish.
• Bake for 25–30 minutes until eggs are fully set and the top is golden.
• Let cool slightly before slicing.

This casserole is cheesy, nutrient-dense, and satisfying.

It’s a perfect keto-friendly breakfast that’s easy to make, flavorful, and low in carbs.

Keto Ham, Mushroom, and Swiss Breakfast Casserole

Keto Ham, Mushroom, and Swiss Breakfast Casserole is savory, rich, and low in carbs.

Diced ham, sautéed mushrooms, and shredded Swiss cheese blend with eggs for a hearty, flavorful breakfast casserole.

It’s ideal for brunch or meal prep.

Ingredients:

• 1 cup diced cooked ham
• 1 cup sliced mushrooms, sautéed
• 8 large eggs
• 1/2 cup heavy cream
• 1 cup shredded Swiss cheese
• 1/4 teaspoon salt
• 1/4 teaspoon black pepper
• 1/4 teaspoon garlic powder

Instructions:

• Preheat oven to 350°F (175°C) and grease an 8×8-inch baking dish.
• Whisk eggs and heavy cream in a large bowl.
• Stir in ham, mushrooms, Swiss cheese, salt, pepper, and garlic powder.
• Pour mixture into the prepared dish.
• Bake for 25–30 minutes until eggs are fully set and top is lightly golden.
• Let cool slightly before slicing and serving.

This casserole is cheesy, savory, and hearty.

It’s a perfect keto-friendly breakfast that’s filling, flavorful, and great for meal prep.