In business since 1969, Red Robin Gourmet Burgers is a casual dining restaurant chain and a part of Red Robin International Inc. Based in Houston, Texas, it offers a variety of food items, including salads, sandwiches, wraps, soups, appetizers, entrees and signature Bottomless beverages. The types of appetizers it serves consist of onion rings, buzzard wings, creamy artichoke and spinach dip and quesadilla, to name a few. There are more than 450 Red Robin Gourmet Burgers restaurants located across the United States.