Preheat your oven to 450 degrees f.
In a large skillet cook the ground meat while mincing with a wooden spoon.
Once no longer pink, drain any excess grease or moisture, then add in the chopped peppers, onion, and all seasonings.
Continue to cook, stirring often for 5-6 minutes.
Add in the marinara sauce, and balsamic vinegar then allow your mixture to simmer for 5 minutes.
Divide this mixture among 4 oven-safe bowls and place them on a sheet pan.
Sprinkle each equally with mozzarella and top with pepperoni. Add sliced jalapeno or olives if desired.
Bake in your preheated oven for around 10 minutes or until the sauce is bubbly and cheese is nice and melty.
Very carefully remove from oven.
Sprinkle with parmesan cheese.