Maya Taqueria is a Mission-style burrito spot in Prospect Heights (with another location in Park Slope) where you can customize your own massive burrito, bowl, nachos, or tacos. They also make quesadillas that always have exactly the right cheese-to-meat ratio, and they serve big platters with prawns, steak, and grilled chicken as well. Try this place for a quick lunch or dinner, or just get yourself some delivery. If you go that route, be sure to request a bunch of their housemade salsas on the side.