Preparing the High-Protein Cottage Cheese & Turkey Sausage Breakfast Casserole is simple if you follow these easy steps:

1. Preheat the Oven: Set your oven to 350°F (175°C) to preheat.
2. Cook the Sausage: In a large skillet, heat the olive oil over medium heat. Add the turkey sausage and cook until browned, breaking it up with a spatula as it cooks.
3. Prepare the Veggies: While the sausage is cooking, chop the bell peppers and spinach. If you’re using frozen spinach, ensure it’s thoroughly thawed and drained.
4. Mix the Casserole Ingredients: In a large mixing bowl, combine the cooked sausage, cottage cheese, eggs, shredded cheese, milk, garlic powder, onion powder, salt, and pepper. Stir until well combined.
5. Add Vegetables: Gently fold in the diced bell peppers and chopped spinach into the egg mixture, ensuring an even distribution.
6. Grease the Baking Dish: Lightly grease a 9×13-inch baking dish with cooking spray or a little olive oil.
7. Pour the Mixture: Transfer the combined mixture into the greased baking dish. Spread it evenly across the dish.
8. Bake: Place the casserole in the preheated oven and bake for 35-40 minutes or until the edges are golden brown and the center is set.
9. Cool Slightly: Once baked, allow the casserole to cool for about 5-10 minutes before cutting it into squares.
10. Serve: Serve warm, and enjoy the nutritious and delicious start to your day!

Following these steps ensures that your casserole will come out perfectly every time, providing a comforting meal that tastes fantastic.