2/3 Cups Sliced Onion

2 Pounds Halibut

1 1/2 Cups Sliced Mushrooms

1/3 Cups Chopped Tomatoes

1/4 Cups Chopped Green Peppers

1/4 Cups Chopped Parsley

3 Tablespoons Chopped Pimento

1/2 Cups Dry White Wine

2 Tablespoons Lemon Juice

1 Teaspoons Salt

1/4 Teaspoons Dill Weed

1/8 Teaspoons Pepper

Arrange onion slices in the bottom of a greased baking dish and place fish on top.  Combine mushrooms, tomatoes, peppers, parsley, and pimento; spread over the fish.  Combine wine, lemon juice, salt, dill weed, and pepper and pour over all. Cover and bake in a preheated 350 degree oven; 25 minutes for until fish flakes easily when tested with a fork.