1 1/2-2 lb. fish (Pollock, haddock or cod)
1 med. onion, sliced
Salt & pepper to taste
1 can sliced mushrooms (4 oz.), drained
1 can Campbell's golden mushroom soup
1 c. stewed tomatoes, drained
1 c. shredded yellow cheese (Colby, Cheddar, etc.)

Spray an 8 x 8 inch square baking dish with Pam. Layer ingredients in order given. Bake at 350 degrees for 45 minutes.