In the same skillet, sauté the bell peppers and onions until softened, then add the spinach and cook until wilted. This step ensures your vegetables are tender and flavorful.
4. Assemble the Casserole
Grease a large baking dish and spread the sautéed potatoes evenly on the bottom.
Add the sausage and steak, followed by the vegetable mixture.
Sprinkle the shredded cheese on top for a melty, cheesy layer.
5. Mix the Eggs and Milk
In a mixing bowl, whisk together the eggs, milk, garlic powder, salt, pepper, and paprika. Pour this mixture over the casserole, making sure it covers all the ingredients evenly.
6. Bake
Cover the baking dish with aluminum foil and bake for 25 minutes.
Remove the foil and bake for an additional 15–20 minutes or until the eggs are set and the cheese is bubbly and golden brown.