1-How to Prepare the Perfect Cheesy Potato And Egg Casserole: Getting your Cheesy Potato And Egg Casserole ready is straightforward and fun. Begin by preheating your oven to 350°F (175°C) and greasing a casserole dish. This sets the stage for a dish that’s full of flavor and easy to make.

2-Gathering and Prepping Ingredients: First, cook the 1 pound of Italian sausage in a pan until it’s browned, then add and sauté the chopped yellow onion in the same grease for extra taste. In a large bowl, whisk together 7 eggs, 1/2 cup of milk, salt, and pepper until smooth. If you’re using frozen diced hash browns, partially thaw them to cut down on moisture.

3-Gathering and Prepping Ingredients: Next, mix the cooked sausage, sautéed onion, hash browns, and most of the grated cheddar cheese into the egg mixture. Stir everything well to ensure even distribution. For the best results, pour this blend into your prepared dish right away.

4-Baking and Finishing Touches: Bake the casserole at 350°F for about 35 minutes, or until it’s nearly set. Then, sprinkle the reserved 1 cup of cheese on top and bake for another 8 minutes until it’s golden and bubbly. Let it rest for 15 to 20 minutes before serving to help it firm up.