Easy High Protein Breakfast Casserole with Turkey Sausage
Spring mornings are for fresh starts and sunny skies. You need a meal that keeps you energized all day. This high protein breakfast casserole is the answer to your busy mornings.
It is creamy, savory, and incredibly simple to make. You can prep it once and enjoy it all week long. Let this dish bring a little morning calm to your kitchen.
Why You’ll Love This Recipe
This dish is a meal prep hero for your routine. You get plenty of protein in every single bite. The blended cottage cheese adds a hidden, creamy boost. It makes the texture feel rich without being heavy.
Your family will never guess the secret ingredient. It is perfect for a healthy reset this season. You only need one pan and one baking dish. Cleanup is fast, leaving you more time for coffee.
Simple Cooking Steps
Making this casserole is a breeze for any home cook. You start by browning the sausage in a skillet. Next, you whisk the eggs with the creamy cottage cheese. This step ensures a velvety texture every time.
Even if you are a beginner, you can do this. Just layer, pour, and bake until it is golden. It is a fail-proof way to feed a hungry crowd.
Simple Ingredients
Most of these items are likely in your pantry right now. Fresh spinach adds a bright pop of spring color.
- 1 lb lean ground turkey sausage
- 12 large eggs
- 2 cups low-fat cottage cheese
- 1.5 cups shredded sharp cheddar cheese, divided
- 1 medium red bell pepper, diced
- 1/2 cup yellow onion, finely diced
- 2 cups fresh baby spinach, roughly chopped
- 1 teaspoon garlic powder
- 1/2 teaspoon kosher salt
- 1/2 teaspoon ground black pepper
- 1 tablespoon olive oil
Step-by-Step
- Preheat oven to 375°F (190°C) and grease a 9×13-inch baking dish.
- In a large skillet over medium-high heat, heat olive oil and cook the turkey sausage until browned and crumbled, about 8 minutes.
- Add the diced onion and bell pepper to the skillet and sauté for an additional 5 minutes until vegetables are softened.
- In a large mixing bowl or blender, combine the eggs, cottage cheese, garlic powder, salt, and pepper. Blend or whisk until the cottage cheese curds are smooth and fully integrated.
- Stir the chopped spinach, cooked sausage mixture, and 1 cup of the shredded cheddar cheese into the egg mixture.
- Pour the combined mixture into the prepared baking dish, ensuring the ingredients are evenly distributed.
- Sprinkle the remaining 0.5 cup of shredded cheddar cheese over the top of the casserole.
- Bake for 35 to 45 minutes until the eggs are set in the center and the edges are golden brown.
- Allow the casserole to rest for 10 minutes before slicing into 8 portions.
Best Ways to Enjoy It
Serve a warm slice with a side of fresh berries. The sweetness of the fruit balances the savory sausage beautifully. You can also add a dollop of salsa for extra kick.
Pack individual slices into containers for easy weekday lunches. Set the table, pour some juice, and enjoy a leisurely weekend brunch. It is a meal that feels special every time.
Storage & Reheating
Store any leftover slices in an airtight container for four days. This casserole also freezes well for up to three months. To reheat, use the microwave for about one minute. For the best texture, use a toaster oven at 350°F. It will taste just as fresh as the first day.
Recipe Tips
- Blend the cottage cheese for the smoothest possible egg base.
- Don’t skip browning the sausage to ensure the best savory flavor.
- Drain any excess fat from the meat before adding to the eggs.
- Use a silicone spatula to easily release slices from the dish.
- For a spring twist, add a handful of fresh chopped chives.
- Double the batch and freeze half for a busy future week.
- Check the center with a knife to ensure the eggs are set.
Ways to Switch It Up
- Swap the turkey sausage for spicy chorizo for more heat.
- In summer, use diced zucchini instead of the spinach.
- Use dairy-free cheese and cottage cheese for a vegan-friendly version.
- Swap the red pepper for roasted green chilies for a smoky flavor.
FAQs
Can I make this ahead of time?
Yes, you can bake it the night before your brunch. Simply reheat the whole dish or individual slices when ready. It stays tender and moist even after reheating.
Do I have to blend the cottage cheese?
Blending is optional but highly recommended for a smooth texture. If you like small curds, a simple whisking works fine too. Both ways will provide that protein-packed creaminess.
Will my kids eat this?
Most kids love the cheesy flavor and familiar sausage. The vegetables are finely diced, so they blend right in. It is a win-win meal for the whole family.
I hope this high protein breakfast casserole brings a little ease to your mornings. Give it a try and enjoy the fresh flavors of the season. Happy cooking!
— Clara

Ingredients
Method
- Preheat oven to 375°F (190°C) and grease a 9x13-inch baking dish.
- In a large skillet over medium-high heat, heat olive oil and cook the turkey sausage until browned and crumbled, about 8 minutes.
- Add the diced onion and bell pepper to the skillet and sauté for an additional 5 minutes until vegetables are softened.
- In a large mixing bowl or blender, combine the eggs, cottage cheese, garlic powder, salt, and pepper. Blend or whisk until the cottage cheese curds are smooth and fully integrated.
- Stir the chopped spinach, cooked sausage mixture, and 1 cup of the shredded cheddar cheese into the egg mixture.
- Pour the combined mixture into the prepared baking dish, ensuring the ingredients are evenly distributed.
- Sprinkle the remaining 0.5 cup of shredded cheddar cheese over the top of the casserole.
- Bake for 35 to 45 minutes until the eggs are set in the center and the edges are golden brown.
- Allow the casserole to rest for 10 minutes before slicing into 8 portions.
