1 medium onion, chopped
2 tablespoon butter, melted
1 (10-3/4 ounce) can cream of shrimp soup, undiluted
1/2 cup half and half
1/2 cup Swiss cheese, finely shredded
1/2 cup Cheddar cheese, finely shredded
Paprika
Preheat oven to 325 degrees. Place trout fillets in a shallow, lightly-oiled baking dish.
Sauté onion in butter in a saucepan until tender. Stir in the next 4 ingredients, stir carefully until cheese melts. Spoon mixture over trout fillets. Sprinkle with paprika. Bake for approximately 20 minutes or until fish flakes easily with a fork.
Makes 4 to 6 servings.