1. Saute onion in butter or margarine until translucent and golden; stir into mashed potatoes along with cheddar cheese. 2. Refrigerate to let flavors meld. 3. Preheat oven to 400°F. 4. Spread pizza crusts with potato mixture. 5. Top with Provolone and Mozzarella cheese mixture and bake until shells are baked and cheese is melted. ---------------------------------------------------------------------------
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Ingredients