Preheat oven to 375°. Grease 2 dozen 1 3/4" muffin tins. Separate rolls into 12 equal pieces (see Photo 1 for an example using one sheet of dough). Cut each piece in half and press into muffin tins (Photo 2). Divide shrimp evenly among shells. Beat together egg, cream, salt and cayenne. Pour over shrimp (approximately 2 tsp. each). Sprinkle with grated cheese. Bake at 375° for 18-20 minutes or until center is set. To serve warm, cool 5 minutes before removing. To freeze, cool on rack and freeze in air tight container or bag. To reheat, place quiches on cookie sheet and bake 12-14 minutes at 350°. Makes 24. Freezes extremely well.