Try this homemade Spuds and Onions Au Gratin recipe the whole family will love. Made with russet potatoes, butter, yellow onions and cheese soup. Easy s…
This Spuds and Onions Au Gratin relies on simple, everyday ingredients such as (15 ounce) can cheese soup, milk, salt and pepper and grated cheddar cheese. It comes together quickly and makes 4 servings, at about 509 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