The number of calories in a Cook-Out milkshake depends upon the flavor and size of the milkshake. According to MyFitnessPal, there are 785 calories in a 16-ounce Cook-Out banana milkshake.
As of 2014, nutrition information is not available on the website for Cook-Out, but it states it is coming soon. Cook-Out is a privately owned restaurant with locations in North Carolina, South Carolina, Tennessee, Virginia and Georgia. It offers a wide variety of unique milkshake flavors, including banana fudge, blueberry cheesecake, cappuccino, chocolate cherry and peach cobbler. Besides milkshakes, the restaurant offers burgers, grilled chicken sandwiches, chicken tenders, hot dogs and chopped pork barbecue.