Mission was the original burrito joint here in Houston. They offer the familiar custom burrito making process (like Chipotle and others), but their ingredients just taste better together.
While their burritos are top notch, you have to try their salads. The Que Mas salad is out of this world. Lettuce, red peppers, jimaca, and fried tortilla chips make the Que Mas unique and tasty. Top it off with the spicy ranch dressing and it is a big hit. I always order the Que Mas with just the veggies, but you meat eaters can add chicken, steak or shrimp.
Mission also has great tortilla soup that tastes great on those frigid Houston winter days.
Give them a try. You will be happy.