Preheat oven to 400 degrees F. Lightly grease cups of a standard size 12-cup muffin tin.
Using a cookie cutter, cut 2-3 rounds from each tortilla. Press each round into muffin cups. Add a teaspoon of sauce into the center of each tortilla round. Sprinkle cheese on top, then pepperoni pieces, or your desired toppings.
Bake for 10-12 minutes, or until golden and bubbly. Sprinkle with chopped parsley or basil, if using. Let pizzas cool slightly before removing to a serving plate.
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