Gaslamp Burger 738 Fifth Ave., San Diego CA 92101 (619) 255-1839 gaslampburger.com Serving up 100% grass-fed burgers with no antibiotics or hormones in the historic heart of San Diego. HOURS Sun. – Thurs.: 11 a.m. – 2 a.m. Fri. – Sat.: 11 a.m. – 3 a.m. American, Dine, Quick Bites