Deep Sea Submarine

Fish

15 ounces smoked fish; broken into large pieces
1/3 cup salad dressing
3 submarine rolls; (12 inches each)
6 slices cheese
2 tomatoes; thinly sliced
1 onion; thinly sliced
1/3 cup salad dressing

Mix 1/3 cup salad dressing with fish. Cut rolls in half the long way. Spread about 1/2 cup of fish mixture on the bottom half of each roll. Put the cheese, tomato and onion slices on top of the fish mixture. Spread the other half of the salad dressing on the top half of the rolls. Cover sandwiches with top half and cut in half.