Cut biscuits into quarter sizes using a pizza slicer for convenience, then toss them in a bowl with pepperoni, mozzarella, Italian seasoning, garlic powder, and olive oil until well coated.
Grease a bundt pan, pour in the biscuit mixture, bake at 350°F for 30-35 minutes until cooked through, then flip onto a plate and serve with pizza sauce or marinara sauce if desired.