A few doors down from Golden Produce is El Castillito, the source of my staple food: the super carne asada burrito. At just over $8 it sounds more expensive, but OP doesn't mention how long his staple meal takes to prepare.

Preparation time is definitely a cost if you'd rather be doing something else. Like taking a walk to buy a burrito. So I don't think the $3 figure is entirely accurate.

This does make me curious about how my meal stacks up in terms of carbs/fat/protien/calories.