Try this homemade Fish Casserole recipe the whole family will love. Made with haddock, mushroom soup, onion and crackers. Easy step-by-step instructions…
This Fish Casserole relies on simple, everyday ingredients such as block haddock, mushroom soup, minced onion and crushed ritz crackers. It comes together quickly and makes 4 servings, at about 44 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