Cheeseburger Pasta

OK, so this is a pasta dish that tastes just like a McDonald's cheeseburger...need I say more? :-)

Ingredients:
1 1/2 cups uncooked penne pasta
3/4 lb lean ground beef
2 Tbsp finely chopped onion
14 oz can no-salt-added diced tomatoes
2 Tbsp dill pickle relish (I didn't not add this)
2 Tbsp prepared mustard
2 Tbsp ketchup
1 tsp steak seasoning (we used Montreal Steak Seasoning)
3/4 cup cheddar cheese, grated
2-3 green onions, optional

Directions:
1. Cook pasta according to package directions. Meanwhile, in a large skillet, cook beef and onion over medium heat until meat is no longer pink; drain. Drain pasta; add to meat mixture.
2. Stir in the tomatoes, relish, mustard, ketchup, and steak seasoning. Bring to a boil. Reduce heat; simmer, uncovered, for 5 minutes.
3. Sprinkle with cheese. Remove from the heat; cover and let stand until cheese is melted. Garnish with green onions if desired.