SavingStar has a hot new offer - Save $5.00 when you purchase 15 boxes of Kraft® Macaroni & Cheese Dinner. Offer includes: 7.25 oz, 5.5 oz. size. If you are not familiar with this type of SavingStar offer, you can meet the purchase requirement in one trip or many and at as many participating stores as you would like as long as it is fulfilled by the expiration date which for this offer is 10/10/12.
You will need to head over to SavingStar and load this offer to your savings card to take advantage. You can get paid when you have $5 in your account so you'll be good to go after this offer!
You should be able to find for under $1. Make sure to check for participating stores.