Whole Tenderloin | USDA PrimeNOTE: MAY BE DELIVERED FROZEN (If its a problem, let us know. You can thaw it in cold water and defrost in 30 minutes) USDA Prime Beef Whole Tenderloin This is the most lean, tender part of the animal. There are only two tenderloins per steer which is why it's so expensive and coveted. It's where we get high end items such as the filet mignon and it's a key component of the T Bone and Porterhouse. Wrap it in our awesome BACON and enjoy them even more.