1-Preheat oven: Getting this breakfast casserole right starts with simple steps that anyone can follow, even if you’re new to cooking. Begin by preheating your oven to 350 degrees Fahrenheit and spraying a 9×13 inch pan with cooking spray to keep things from sticking.

2-Combine ingredients: In a large bowl, combine the 12 eggs, 1 cup of sour cream, 1/4 cup of milk, 2 cups of shredded cheddar cheese, 1 teaspoon of salt, and 1/2 teaspoon of ground black pepper, mixing on low speed just until everything blends together smoothly.

3-Cook sausage: Next, cook the 2 pounds of sausage in a skillet over medium heat until it’s browned and broken into small pieces, then drain most of the grease before adding it to the egg mixture.

4-Sauté vegetables: In the same skillet, sauté the diced 1/2 green bell pepper and 1/2 red bell pepper along with the 4 green onions for 2-3 minutes until they’re tender, and stir them into the egg mixture as well.

5-Bake casserole: Finally, pour the combined ingredients into your prepared pan and bake for 35-50 minutes, checking until the edges are set and the center is slightly jiggly for that perfect texture.