Get the chicken salad with guacamole (healthy fats).
Chicken + blacks beans + red tomatillo salsa + guacamole + lettuce =
552 cals, 28g (4.5 saturated) Fat, 41g Protein, 34g Carbs.
http://www.chipotlefan.com/index.php?id=chipotle_calc
Going w/ a burrito shell ups it to
882 kcal, 37g (6.5 sat) fat, 50g Protein, 88 Carbs. Those shells are the devil.