Cook diced onion and ground beef until beef is cooked through
In the meantime boil water and cook elbow noddles and noodles fro Italpasta Macaroni and Cheese (add 3 minutes after starting to cook regular noddles as these will cook faster) until soft
In a baking dish add ground beef mixture, pasta, tomatoes, cheese packet from Italpasta Macaroni and cheese and 1/2 cup of grated cheese. Mix
Top with remaining cheddar cheese, and salt and pepper to taste
Bake at 325oF for 20-25 minutes until heated through and cheese it melted
Enjoy!