Try this homemade Potato Supreme Casserole recipe the whole family will love. Made with cream of mushroom soup, milk, potatoes and onion. Easy step-by-s…
This Potato Supreme Casserole relies on simple, everyday ingredients such as cream of mushroom soup, to 3/4 c. milk, sliced potatoes and small onion, sliced. It comes together quickly and makes 4 servings, at about 220 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