Heat oven to 350 degrees F. Mix tuna, sweet pickles, green onions, egg, walnuts, mayonnaise, mustard, lemon juice, salt and pepper in small bowl.
Place 1 tomato slice on each bagel half; spoon tuna mixture over tomatoes. Top with remaining tomato slices; sprinkle with cheese. Wrap each bagel in aluminum foil.
Bake 30 minutes. Unwrap bagels, place under broiler until cheese is bubbly, if desired. Sprinkle lightly with paprika. Serve hot.
Makes 4 servings.
From: "Bagels! Bagels! and more Bagels!" by Nao Hauser and Sue Spitler, c. Lender's Bagel Bakery, Inc., Bantam Books, 1982.
Shared by June Hoffman, 6/93