Mix catsup oregano vinegar onion powder sugar and pepper Spread 14 on each muffin half
Top with 14 of the pepperoni Place 1 tablespoon of Mozzarella on each muffin half
Sprinkle with Parmesan cheese
Place on single layer of paper toweling on carousel or on double layer of paper toweling on dinner plate Microwave on High 100 until cheese is melted and filling is heated through 1 minute to 2 minutes and 15 seconds
If using oven other than carousel rotate plate and rearrange muffins after half the cooking time
Cut each muffin half into 4 wedges Yields 16 appetizers