Preheat the oven to 350 degrees. Cut the peppers in half lengthwise and scrape out the seeds.
Place the sausage and ground beef into a large pan that is heated over medium heat. Cook until the meat is cooked through and browned. Drain any excess liquid.
Add the rice, tomato sauce, Worcestershire, garlic powder, and onion powder in with the meat. Stir to combine. Fill each of your peppers with heaping amounts of the mixture.
Cover with tin foil and bake for 45 minutes or until the peppers are tender. Uncover, sprinkle each with cheese and cook an additional 2-3 minutes or until melted.