I finally stopped into Bean recently. I liked the atmosphere, with brightly colored walls and seating at a few tables outside. I would say that they could use a new coat of paint on the inside, as I don't particularly like to eat with a wall 5 inches from me that has paint chipping off of it.
But, as far as the food goes, it was quite nice.
I had the plantain and black beans, and tried the mexican corn and Blackberry Lemonade ( I believe it was blackberry).
The best part of the meal was definitely the plantain and black bean combo, with an interesting texture and flavor. The worst part would definitely be the Mexican corn, which was overcooked, consisted of corn with paprika and butter, and clocked in at over $3.00 for one ear.
I won't be purchasing the corn again, when I could make it myself for a fraction of the cost (and probably with a better flavor as well.)
They have a good selection of vegetarian dishes, which is what is lacking at Matamoros Pueblo Grocery (If you are a meat-eater, head over there for cheap CHEAP eats).