This casserole is adaptable: swap ground beef for turkey or chicken, mix cheeses, add mushrooms, jalapeños, or spinach, and experiment with seasonings like smoked paprika or cayenne. Leftovers refrigerate well for up to 4 days or freeze for 3 months. Reheat covered in the oven or microwave.
Keyword Cheesesteak, Comfort Food, Crockpot, Potato Casserole