Preheat oven to 350 degrees.
Prepare macaroni and cheese dinner according to package directions.
In a large skillet, brown meat. Add celery, green pepper, and onion and cook until tender.
Stir into meat mixture corn, tomato paste, water, salt and pepper. Add macaroni and cheese. Mix and combine thoroughly. Bake for 15-20 minutes. Makes 4-6 servings. Enjoy!