Hearty Mac & Cheese

1 pkg mac & cheese mix
1 lb ground beef
3 tbsp chopped onion
2 tbsp chopped green pepper
1 can tomato soup, undiluted
2 tbsp water
2 tbsp ketchup
2 tsp mustard
1 tsp seasoned salt
1 tsp chili powder
1/2 tsp dried oregano
1/4 tsp ground cumin
1/4 tsp pepper
1 c frozencorn thawed
1 c shredded cheddar cheese
1/4 c butter cubed
1/4 c milk

Cook macaroni according to package directions, set cheese packet aside. Meanwhile, in a large skillet, cook the beef, onion, and green pepper over medium heat until no longer pink and veggies are tender, drain. Add soup, water, ketchup, mustard and seasonings. Bring to a boil. Reduce heat, uncovered for 4 mins. Drain macaroni, add to the beef mixture. Stir in the corn, cheese and contents of cheese packet, butter and milk. Cook over medium heat until heated through.