Optimum Nutrition has a Double Rich Chocolate Flavor that is 110 cals per scoop, 3 g carb, 1.5 g fat, 22 g protein. It's yummy, especially mixed with a little espresso coffee & milk -- Mmmmmm healthy frappucino!!
Any Whey is also good -- it really is flavorless, but a little low on the protein 17 g per scoop but only 70 cals.