Try this homemade Overnight Mashed Potato Casserole recipe the whole family will love. Made with potatoes, cream cheese, butter and sour cream. Easy ste…
This Overnight Mashed Potato Casserole relies on simple, everyday ingredients such as butter or margarine, sour cream, milk and eggs, lightly beaten. It comes together quickly and makes 4 servings, at about 609 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