<p>Wendy's founder Dave Thomas opened his first restaurant in 1969. Today, each location offers a selection of hamburgers, chicken burgers and entrees, shakes, salads and less conventional fast-food fare, such as chili and baked potatoes.</p> <p>Wendy's is located on Avenida De Las Flores in the Rancho Santa Margarita marketplace. Customers will find plenty of parking and a drive-thru.</p>