Cheeseburger Pasta

1 pound penne pasta (or any pasta you like)
1 pound ground beef
1 small onion, finely chopped
1 (14.5 ounce) diced tomatoes
1/8 cup Dijon Mustard
¼ cup ketchup
2 teaspoons of seasoning (I used Mrs. Dash)
1 cup cheddar cheese, shredded

Cook the pasta until it is al dente. Meanwhile in a large skillet, cook the beef, onions and seasoning over medium heat until cooked through. Drain any grease. Add in the tomatoes, relish mustard and ketchup. Heat for an additional 5 minutes. Sprinkle with cheese and serve.