Wonderful Rancheros Burritos
WONDERFUL RANCHEROS BURRITOS1 medium onion, chopped4 plum tomatoes, slicedOlive oil½ chipotle chile canned in adobo sauce, chopped1 T. adobo sauce½ c. water2 T. fresh lime juice1 T. chili powder1 t. kosher salt1 t. ground cumin1 (14-oz.) can black beans, rinsed…