I visited La Mission on a Sunday evening with my daughter. Bottom line: decent food, decent service, and decent prices, but not worth going out of your way to try.
Atmosphere: Pretty casual. Open-air restaurant. Pretty warm the night we were there, but when they turned on the big fans, it was comfortable enough. There were only three other parties there; a couple with a toddler, a group of 8 women, and one older couple. In other words, all types of diners were to be seen. 3 out of 5 stars.
Service: Our waiter's passable English plus my small bit of Spanish made communication easy. We did not feel rushed, nor did we have to wait forever to get his attention when we needed anything. 4 out of 5 stars.
Food: Upon sitting down and ordering our drinks, we were served complementary chips and guacamole, along with fresh pico de gallo. While not the best guacamole I've ever had, it was fresh and tasty. My daughter ordered a lemonade, which was squeezed fresh and reportedly "delicious."
We both started with soup, lime for me, tortilla for her. If you do nothing else here, get the lime soup. It was by far the best part of the meal. The tortilla soup was average, at best.
For my entrée, I ordered the garlic shrimp. It was passable, but nothing I'd order again. The dish consisted of 8 or so large, butterflyed shrimp, with a small baked potato and rice on the side. There just was not enough flavor in the dish for my taste.
My daughter ordered chicken enchiladas, which were pretty standard fare.
3.5 out of 5 stars, with the .5 being added for that yummy lime soup.
Total experience: All in all, nothing that would make me go out of my way to return again. However, were I in the immediate area and hungry, I wouldn't hesitate to eat here again. 3 out of 5 stars.
This review is the subjective opinion of an individual traveler and not of TripAdvisor LLC nor of its partners.