Cheeseburger Macaroni

1 - 16 oz. box macaroni noodles (or Barilla cut spaghetti noodles)
1 lb. ground chuck or sirloin
1/4 - 1/2 cup ketchup
1 can tomato soup
2 cans petite diced tomatoes, undrained
chopped onion
chopped/minced garlic (optional)
fresh chopped baby spinach (optional)
1 tsp. ground red pepper
2 cups shredded cheese

Cook noodles and drain. Cook beef with onions and garlic. Drain. Add to beef mixture: tomatoes, soup, ketchup, red pepper, salt and pepper. Stir in macaroni and spinach. Pour into a baking dish and top with cheddar cheese. Bake at 375 degrees for 5 - 8 minutes or until cheese is melted and bubbly.