Try this homemade Summer Squash Casserole recipe the whole family will love. Made with summer squash, onions, cream of celery soup and sour cream. Easy …
This Summer Squash Casserole relies on simple, everyday ingredients such as summer squash, sliced, or 2 medium onions, sliced, cream of celery soup and sour cream. It comes together quickly and makes 4 servings, at about 377 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