Combine Sauce Ingredients: Stir in the diced tomatoes, tomato sauce, and Italian seasoning. Season with salt and pepper to taste. Allow the mixture to simmer for 10-15 minutes to allow the flavors to meld together.
Cook the Macaroni: While the beef sauce is simmering, cook the elbow macaroni according to package instructions until al dente. Drain the cooked macaroni and set aside.
Combine Beef and Macaroni: Add the cooked macaroni to the skillet with the beef sauce. Stir gently to coat the macaroni evenly with the sauce.
Serve and Garnish: Serve the Macaroni and Beef hot, garnished with grated Parmesan cheese and chopped fresh parsley, if desired. Enjoy the comforting flavors of this classic dish with your loved ones.