Preheat the oven to 425°F. Lightly grease a bite-sized tart pan; a mini muffin pan, or a baking sheet. If using the pop-up tart pan, have an ungreased baking sheet available to use as a base., In a medium-sized mixing bowl, combine the flour, cheese powder, baking powder, salt, Pizza Dough Flavor, and pizza seasoning., Add the butter, working it in until the mixture is crumbly., Add the pepperoni, shredded cheese, and scallions, mixing to distribute., Add the milk, mixing just until everything is evenly moistened., Scoop the dough by the level tablespoonful into the pop-up pan, or mini-muffin pan. Place the pop-up pan onto a baking sheet to catch any drips. For bigger bites, dollop the dough by heaping tablespoon scoops onto the prepared baking sheet., Sprinkle the biscuits with 1/2 teaspoon pizza seasoning, or your favorite dried herbs., Bake the biscuits till they're a medium to deep golden brown, 10 to 14 minutes., Remove the biscuits from the oven, and cool briefly on a rack. Use a table knife to pop the bottom of the pan off the biscuits. Serve warm.