Cooking Directions:
1. Prepare pasta according to package directions; drain.
2. Meanwhile, in a large skillet, over medium heat, cook ground beef and onion until meat is browned and onion is tender. Pour off fat.
3. Add tomatoes, taco seasoning mix and water; bring to a boil. Reduce heat; simmer 15 minutes.
43. Serve over cooked pasta; top with cheese and tortilla chips if desired.