Hillcrest's women-owned East Coast-style pizzeria, Sisters Pizza serves hand-tossed thin crust pies at 3603 Fourth Ave in the 92103 ZIP code. The gluten-free pizza line uses a dedicated preparation area to prevent cross-contamination, a dietary-conscious approach on the same Fourth Ave block as Aero Club Bar's 1947-era whiskey library. The menu extends into Mediterranean comfort plates, chicken parmesan on Italian rolls, and a dedicated gluten-free pizza line, while each purchase supports the restaurant's #KindnessForKate community program across San Diego. Individual slices sell alongside full 18-inch pies and Italian rolls, giving the Fourth Ave walk-in crowd a quick counter-service option between independent shops like Shakespeare's Corner Shoppe and the neighborhood's sit-down restaurants. The restaurant handles private patio rentals and large-format catering orders through its Hillcrest and North Park storefronts.