Try this homemade Simple Fish Casserole recipe the whole family will love. Made with butter, frozen leaf spinach, fish and salt. Easy step-by-step instr…
This Simple Fish Casserole relies on simple, everyday ingredients such as butter or margarine, salt and pepper, lemon juice and small onion, thinly sliced. It comes together quickly and makes 4 servings, at about 143 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