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High Protein Breakfast Casserole - Easy, Savory Meal Prep

Start your day with this protein-packed breakfast casserole, perfect for meal prepping and a savory start. It's easy to customize with your favorite vegetables and cheese.
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Prep Time 15 minutes
Cook Time 50 minutes
Total Time 1 hour 5 minutes
Servings: 8 squares
Course: Breakfast, Brunch
Cuisine: American
Calories: 350
Ingredients Method Notes

Ingredients
  

Ingredients
  • 8 large eggs
  • 1 cup cottage cheese (or Greek yogurt)
  • 1/2 cup milk (any type)
  • 1 cup cooked lean beef sausage or turkey beef sausage
  • 1 cup chopped vegetables (bell peppers, spinach, zucchini, or mushrooms)
  • 1/2 cup rolled oats (optional for extra protein and texture)
  • 1 cup shredded cheddar or mozzarella cheese
  • 1 tsp garlic powder
  • 1 tsp onion powder
  • 1/2 tsp black pepper
  • 1/2 tsp salt
  • 1/4 tsp paprika
  • Cooking spray or butter for greasing the baking dish

Method
 

  1. Preheat oven to 375°F (190°C). Grease a 9x13-inch baking dish.
  2. Cook sausage in a skillet until browned. Add vegetables and sauté for 3-5 minutes. Set aside.
  3. Whisk eggs, cottage cheese, milk, and seasonings in a large bowl.
  4. Fold in cooked sausage, vegetables, oats, and cheese. Stir to combine.
  5. Pour mixture into the baking dish. Top with extra cheese if desired.
  6. Bake for 45-50 minutes until eggs are set and top is golden brown. Cool for 5-10 minutes before slicing.
  7. Cut into squares and serve warm.

Notes

Feel free to substitute ingredients based on your preferences and dietary needs. For a vegetarian option, omit the sausage and add more vegetables.