Walgreens - Cheap Stouffers Mac-n-cheese

This week, Walgreens has the Stouffers frozen Macaroni & Cheese on sale, 2 for $3 and earn a $1 RR when you buy 2. It is also printing a coupon!! The coupon is for .75/2 OR $1/3, so it will look like this:

Transaction #1
Buy 2 Stouffers Mac n Cheese 2/$3Pay $3 Get $1 RR and coupon for either $0.75/2 or $1/3
Final Cost: $2 for 2 Stouffers Mac n Cheese

Transaction #2Buy 2 Stouffers Mac n Cheese 2/$3Use $0.75/2 coupon from previous purchasePay $2.25 Get $1
Final Cost: $1.25 for 2 Stouffers Mac n Cheese

Thanks Serious about Saving!