The neon “pizza by the slice” sign glowing in the window of Primo Pizza is a beacon of all things cheesy and carb-filled. The NoPa spot, located on a sleepy stretch of Divisadero, has the exact pizzas you’ll want to stuff in your face at 2am, or at the end of the night when you’ve lost your voice to karaoke. They’re dripping with mozzarella, and loaded with meatballs, garlic and buffalo sauce, and other toppings that get messy in the best way.