Puffed Shrimp And Cheese Sandwiches
["1 Tbsp. butter", "3 scallions, thinly sliced (including 2-inch of green tops)", "3 medium mushrooms, sliced", "2 eggs, separated", "1 1/2 c. shredded Swiss or Gruyere cheese", "1/4 tsp. dry mustard", "1/4 tsp. dill weed", "6 oz. diced, cooked shrimp", "6 thin slices white, whole wheat or rye bread, toasted", "paprika"]
["In small heavy saucepan, melt butter over moderate heat.", "Add scallions and mushrooms and saute until golden and soft, stirring often.", "Remove from heat.", "Stir in egg yolks, cheese, dry mustard, dill and shrimp.", "Beat egg whites until stiff and fold into shrimp mixture.", "Spread an equal portion of mixture on one side of each toasted bread slice.", "Sprinkle evenly with paprika and arrange on an ungreased baking sheet.", "Bake, uncovered, at 375\u00b0 for 15 minutes or until puffy.", "Serve hot or cold."]
["butter", "scallions", "mushrooms", "eggs", "Swiss", "dry mustard", "dill weed", "shrimp", "thin slices white", "paprika"]