Add ground beef, onion, green pepper and red pepper to a large pan.
Cook over medium heat for 7 to 9 minutes.
1. Stir taco seasoning into beef mixture.
Stir in diced tomatoes, tomato sauce, tomatoes with green chilies and corn.
Reduce heat to low and simmer, uncovered, for 20 minutes.
Stir in cooked spaghetti noodles and cheese.