 Muscle Maker, Inc. GRIL the parent company of Muscle Maker Grill Healthy Joes, a fast-casual concept known for serving healthier for you meals, today announced it has signed a 10 location agreement with a major industry leading delivery-only kitchen provider. The delivery-only kitchen concept has already opened facilities in several key markets. Muscle Maker plans to open its first five delivery-only kitchens in the Chicago market this April and has sights on other major metropolitan markets for future growth. 