PizzaHacker has no pretenses. At this casual joint, delicious pizza is the end-all-be-all, which is great news for children who just want to dig into a slice after a long day in San Francisco. The restaurant gets crowded on weekend nights, but the table turn over is pretty quick since they don’t take reservations. On the menu, you’ll find personal pies like Margherita, Marinara, and the “Ohio” with pepperoni and mozzarella if you’re feeling inventive. Keep in mind that there’s also a to-go option if the place gets too busy.