1-First Step: Preheat and Prep Your Pan Begin by preheating your oven to 350 degrees Fahrenheit to get it ready for baking. Grease a 9×13 inch baking pan with a bit of oil or cooking spray to prevent sticking and ensure even cooking. This step sets the foundation for your savory breakfast casserole, making cleanup simple later.

2-Second Step: Mix the Wet Ingredients In a large bowl, combine the 12 eggs, 1 cup sour cream, 1/4 cup milk, 2 cups shredded cheddar cheese, 1 teaspoon salt, and 1/2 teaspoon ground black pepper. Stir everything until it’s well mixed and smooth, creating a base that’s full of flavor for your breakfast casserole. This mixture forms the heart of the dish, providing moisture and taste.

3-Third Step: Cook the Sausage Heat a skillet over medium heat and add the 2 pounds of sausage. Break it into small pieces as it cooks until it’s browned and fully cooked, which takes about 5-7 minutes. Once done, drain the excess fat and add the sausage to your egg mixture for that savory protein boost in your morning meals.

4-Fourth Step: Sauté the Vegetables Using the same skillet, sauté the 4 green onions, 1/2 diced green bell pepper, and 1/2 diced red bell pepper for 2-3 minutes until they soften. This quick step adds fresh crunch and color to your breakfast casserole, enhancing its overall appeal. Stir these veggies into the egg and sausage mixture for added nutrition.

5-Fifth Step: Combine and Bake Pour the combined ingredients into your prepared baking pan, spreading it evenly. Bake in the preheated oven for 35-50 minutes, checking at the 35-minute mark. The casserole is ready when the edges are set and the center is slightly jiggly, resulting in a perfect savory breakfast that’s ideal for meal prep.

6-Final Step: Cool and Serve Remove the casserole from the oven and let it cool for a few minutes before serving to allow it to set properly. Cut into portions and enjoy your breakfast casserole warm, with options to add extras like herbs for personalization. Leftovers can be stored for 3-4 days, making it great for busy schedules. For more ideas on breakfast casserole recipes for simple morning meals, visit breakfast casserole from scratch for inspiring twists.