Try this homemade Squash Casserole (Yellow) recipe the whole family will love. Made with onion, sour cream, cream of mushroom soup and water. Easy step-…
This Squash Casserole (Yellow) relies on simple, everyday ingredients such as squash, washed and cooked, small onion, chopped, (8 oz.) container sour cream and cream of mushroom soup. It comes together quickly and makes 4 servings, at about 425 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