I made the stuffing first thing in the morning so we could avoid heating up the kitchen at dinner time. The stuffing is a combination of sautéed ground beef, onion, garlic, oregano, salt, cooked rice, and Rao’s vodka sauce. I soften the pepper shells with a spin in the microwave and then bake the stuffed shells in a 400F oven, covered, for 30 minutes. Then I remove the foil for the last 10 minutes. The refrigerated peppers heat up in the microwave in 2 to 3 minutes when it is time to eat.