Heat oven to 400°F. Cut each wonton skin in half into 2 triangles. On 2 large ungreased cookie sheets, arrange wonton skins in single layer. Spray wontons with cooking spray. Bake about 6 minutes or until crisp; cool.
In food processor, place beans, Parmesan cheese and dressing. Cover; process until smooth. Spread mixture in ungreased 9-inch microwavable pie plate or quiche dish.
Top with pepperoni, pepperoncini peppers, cheese blend and oregano. Cover with microwavable plastic wrap.
Microwave on High 1 1/2 to 2 minutes, turning pan once halfway through cooking. Serve with crisp wontons.