Try this homemade Au Gratin Potato Casserole recipe the whole family will love. Made with potatoes, cream of mushroom soup, milk and Cheddar cheese. Eas…
This Au Gratin Potato Casserole relies on simple, everyday ingredients such as potatoes, sliced, milk, cheddar cheese, grated and salt and pepper to taste. It comes together quickly and makes 4 servings, at about 270 kcal each. The step-by-step instructions below are written to be easy to follow, even on a busy day.
It works as a light main on its own or as a starter alongside crusty bread, and it's just as good for a cozy night in as it is for feeding a crowd. Leftovers keep well, so it's a smart choice for meal prep too.
Updated Jun 30, 2026