Sausage and Pepperoni Pizza-Stuffed Peppers

Name: Sausage and Pepperoni Pizza-Stuffed Peppers
Prep time: 25 min
Cook time: 45 min
Total time: 1 h 10 min
Cuisine: European, Italian, Mediterranean
Ingredients: 19.5 oz Italian sausage or turkey Italian sausage links, uncooked; 1 T olive oil; 1 small onion, chopped; 1 T minced garlic; 13 oz. jar Rao's pizza sauce (see notes); 2 tsp. dried oregano; 3 large bell peppers, cut in half lengthwise and stem and seeds removed; 3 oz. pepperoni; 2 1/2 cups grated Mozzarella cheese