When mornings are busy but you still want a filling, low-carb breakfast, this Keto Breakfast Casserole is the answer. It’s rich, cheesy, packed with protein, and loaded with healthy fats to keep you full for hours. Best of all, it can be made ahead of time and reheated in minutes—making it a lifesaver for meal prep and hectic weekdays.
Whether you’re following a keto lifestyle or simply looking for a nourishing breakfast that doesn’t rely on carbs, this casserole delivers comfort, flavor, and convenience in every bite.
Why You’ll Love This Keto Breakfast Casserole
- Quick & Easy: Simple ingredients and minimal prep
- Meal-Prep Friendly: Make once, enjoy all week
- High in Protein & Healthy Fats: Keeps you energized and satisfied
- Customizable: Swap veggies or proteins to suit your taste
- Family-Friendly: Even non-keto eaters love it
Ingredients
- 12 large eggs
- 1 cup heavy cream
- 2 cups shredded cheddar cheese
- 1 cup cooked bacon, crumbled
- 1 cup cooked sausage, crumbled
- 1 bell pepper, diced
- 1 small onion, diced
- 1 cup fresh spinach, chopped
- Salt and black pepper, to taste
How to Make Keto Breakfast Casserole
- Preheat the oven to 350°F (175°C) and grease a 9×13-inch baking dish.
- Whisk the eggs and cream in a large bowl until smooth and well combined.
- Stir in the fillings: cheddar cheese, bacon, sausage, bell pepper, onion, spinach, salt, and pepper.
- Pour the mixture into the prepared baking dish and spread evenly.
- Bake for 30–35 minutes, or until the center is set and the top is lightly golden.
- Let cool slightly, then slice and serve warm.
Carb Breakdown (Approximate)
- Eggs: ~12g total carbs
- Heavy cream: ~6.5g per cup
- Cheddar cheese: ~2g total
- Bacon: 0g (varies by brand)
- Sausage: ~1g (varies by brand)
- Bell pepper: ~6g
- Onion: ~6g
- Spinach: ~1g
Total carbs for the full casserole: ~34.5g
(Carbs per serving will vary depending on portion size.)
Tips & Variations
- Lower carbs: Reduce onion or bell pepper slightly
- Extra flavor: Add garlic powder, paprika, or Italian seasoning
- Different cheese: Try mozzarella, pepper jack, or Swiss
- Vegetarian option: Skip the meat and add mushrooms or zucchini
- Freezer-friendly: Slice and freeze for grab-and-go breakfasts
A Perfect Keto Morning Meal
This Keto Breakfast Casserole proves that low-carb breakfasts don’t have to be boring. It’s hearty, comforting, and incredibly easy to prepare. Whether you’re feeding a crowd, planning meals for the week, or just craving a warm and satisfying breakfast, this casserole is a guaranteed win.