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Ultimate High-Protein Casserole: Keto Chicken Parmesan Casserole Recipe

high-protein casserole
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Every Sunday, my father would bake a hearty breakfast casserole before church—something warm, filling, and made with love. I’ve taken that tradition and added a healthy twist with this high-protein version. It’s perfect for busy mornings, meal prep, or feeding the whole family. Make it once, and you’ve got breakfast for days!

Ingredients

Scale

  • 10 large eggs

  • 1 cup cottage cheese

  • 1/2 cup shredded cheddar cheese

  • 1/2 cup diced bell peppers

  • 1/2 cup chopped spinach

  • 1/2 cup diced onion

  • 1 cup cooked and crumbled turkey sausage or lean ground turkey

  • Salt and pepper to taste

  • 1/2 tsp garlic powder

  • Olive oil or non-stick spray for greasing

Instructions

  1. Preheat oven to 375°F (190°C).

  2. In a large bowl, whisk eggs, cottage cheese, garlic powder, salt, and pepper.

  3. Add chopped veggies, cooked sausage, and shredded cheese. Stir to combine.

  4. Grease a 9×13-inch baking dish and pour in the mixture.

  5. Bake for 35–40 minutes, or until the center is set and top is golden.

  6. Let it cool slightly before slicing. Enjoy right away or refrigerate for up to 5 days.

Notes

  • Make it ahead: Bake it on Sunday and refrigerate. It reheats beautifully for up to 5 days—just pop it in the microwave!

  • Go low-carb: Skip the potatoes or bread and load up on veggies and lean meats for a keto-friendly version.

  • Double the batch: Use two pans and freeze one. It’s a lifesaver on busy mornings.

  • Dairy-free option? Swap cottage cheese and cheddar with plant-based versions.

  • Customize it: Add mushrooms, tomatoes, or even a bit of hot sauce for a flavor kick.

Nutrition

Find it online: https://recipes.gernarb.com/ultimate-high-protein-casserole-keto-chicken-parmesan-casserole-recipe/