Instructions: Preheat oven to 350 F. Cut a slice from tops of tomatoes. Hollow out tomato. Spray a casserole with aerosol shortening; place tomatoes in dish.

In bowl, combine tuna, cheese, macaroni and onion. Stir in mayonnaise and sour cream. Spoon into shells. Replace tops. Cover and bake for 30 to 40 minutes, or until heated. Sprinkle with parsley.

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