Arrange Trout in a baking dish prepared with vegetable cooking spray. Pour lemon juice and 2 tablespoons soy sauce on Trout. Layer with onion slices and bake at 350 degrees for 20 to 25 minutes or until fish flakes easily with fork. Chill for 1 hour. Pick out any bones from Trout. Flake meat and place in mixing bowl. Add remaining 1 tablespoon of soy sauce, minced onion; pickle relish, 2 eggs and mayonnaise. Mix lightly but thoroughly. Chill, covered with plastic wrap, for at least 1 hour. Serve with crackers.