In a large skillet, brown the ground beef, then drain excess liquid. Add the bell peppers, onion, garlic, Italian seasoning, salt and pepper to your skillet. Continue cooking over medium heat, until the onion is translucent. Remove from heat.
Stir in the diced tomatoes, tomato paste, Worcestershire sauce and beef broth. Turn off heat and stir in the rice.
Transfer the beef and rice mixture into a 9x13 inch casserole dish and cover very tightly with foil. Bake at 375°F for 35 to 40 minutes.
Remove the foil and sprinkle the shredded mozzarella over the top of the casserole. Return to oven and cook an additional 5 to 10 minutes, until the cheese has melted.
Notes
Calories are automatically generated. For best results calculate based on your exact ingredients.
Make it spicy by using spicy Italian sausage, adding red pepper flakes, or diced jalapenos.
Try with other meats like ground Italian sausage, ground chicken, ground pork, ground turkey, or leftover grilled steak, grilled pork chops.
Make a double batch in a disposable casserole pan and gift to a friend or freeze for later.
Make a vegetarian stuffed pepper casserole by swapping the ground beef for vegetarian beef crumbles, or drained and rinsed cannellini beans.