Mother and son, Emma and Jordan, worked for years to create a Tucson favorite — home of the table-side salsa and Best Margarita in Town — Guadalajara Original Grill. Their passion project, Calle Tepa, is a fast-casual Mexican outpost with a street-style twist. The restaurant is inspired by Emma’s childhood growing up in the vibrant culture of Jalisco, Mexico, where the aroma of home cooking filled the air and was always a way of life.