Whenever we happen to be in the neighborhood, there's a couple of places we've tried, and ended up liking a lot. Viva Mercado's is indeed one of them, but it was our second (third, maybe?) visit that prompted me to buckle down and write a review.
First, this is only one of TWO places in town we've been to that obviously make their chips and salsa in-house; an important detail of authentic Latin cuisine that never goes unappreciated. And the PORTIONS...AY, DIOS MIO! I ordered a very generous Taco Salad with Grilled Chicken and a Quesadilla with Carnitas added, and by the time I got halfway through the salad, I was STUFFED...no entree or desserts needed! Well, not quite true...I counted my second Banana Margarita as my 'dessert'!
So one of the things to keep in mind when you come here is to bring an OUTRAGEOUS appetite to match those more-than-worth-your-dinero portions. They may have to roll you out in a wheelbarrow when you finish...but the flavorful, freshly-made food will have been worth it!