Preheat oven to 400 degrees
In a large skillet, over medium heat, cook the ground beef till just a little pink, about 5-7 minutes. Season the beef with salt and pepper then break up into small pieces as it cooks.
Stir in worcestershire sauce, ketchup, mustard, onion powder, granulated garlic, parmesan cheese, ¾ cup of shredded cheese, rice, ¼ cup of the stock, and tomato sauce. Stir until all ingredients are combined and heated through. Remove from heat and set aside.
Cut 4 bell peppers in half and clean out seeds and membranes. Stuff each bell pepper with ground beef mixture, top the peppers with the remaining cheese, and line up in a casserole dish. **note I had just enough ground beef mixture to fill 8 pepper halves. Depending on the size of your peppers you may have a little less or more.
Pour the rest of the beef broth into the bottom of the casserole dish. Cover tightly with foil and bake for 40 minutes or until cooked. Serve with a pickle or some relish and enjoy.