Baja is one of the better chain fast food Mexican style joints. We love their Burrito Ultimo and it's a decent size for about $8. Both the carnitas and steak are very tender, and I like how they grill the burrito after its wrapped. The tortillas are nice and chewy; love the texture!
Don't forget to ask for free chips and get lots of salsa at their bar. I like the verde the best.
Also sign up for their birthday club and get a free burrito for your birthday with a purchase of a large drink! If you keep the cup, refills are $0.99 for as long as you have the cup.