Try this homemade Zucchini Casserole recipe the whole family will love. Made with onion, zucchini, tomatoes and larger. Easy step-by-step instructions i…
This Zucchini Casserole relies on simple, everyday ingredients such as large onion, chopped, medium zucchini, large tomatoes, sliced and larger pkg. fresh mushrooms. It comes together quickly and makes 4 servings, at about 691 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