Grease a large 12-16 ounce mug with cooking spray.
Add the flour, Italian seasoning, baking soda, baking powder, salt, and pepper. Stir to combine.
Add the milk and olive oil, whisking until smooth.
Gently pat the dough down, leveling out the top.
Spread the marinara sauce on top followed by the Mozzarella, Parmesan, pepperoni, and extra Italian herbs.
Microwave 1-1.5 minutes on high until the dough is fluffy and the cheese is melted. Start with 1 minute, and adjust as needed. Be careful not to overcook!
Cool slightly before serving, and enjoy!
