Try this homemade Mashed Potato Casserole recipe the whole family will love. Made with white potatoes, sour cream, onion and Cheddar cheese. Easy step-b…
This Mashed Potato Casserole relies on simple, everyday ingredients such as white potatoes, sour cream, small onion, chopped and salt. It comes together quickly and makes 4 servings, at about 459 kcal each. The step-by-step instructions below are written to be easy to follow, even on a busy day.
It's versatile enough for an easy weeknight dinner yet satisfying enough for guests at the weekend. Serve it with your favorite sides, and keep any leftovers for a quick meal the next day.
Updated Jun 30, 2026