I've heard the Atkins shakes are a decent option. You can usually get a starter kit free on their website that has bars and great coupons. The best price I've seen on them is at Walmart...my husband likes them for breaksfast.

I keep the chocolate delight atikins shakes on hand in case i feel a little craving for chocolate, they are really good, and yes walmart has the best price and if you go to atkins.com you can print off two $1.00 coupons!