I recently move into the Grapevine Texas area.  One of the first mexican places I tried was Los Amigos on Northwest Highway.  I have been 3 times so far and love the food.  The resaurant is small and a tiny bit cramped, but not horribly.  The chips are about average with really good hot sauce.  I have had 2 different entree's and my guest have had 2 others.  I got the Pechuga Campesina and the Enchilada Verde.  The Campesina is amazing.  Its a moderate sized grilled chicken covered in tomatillo sauce with grilled onions and bell peppers.  My guest had  cheese enchiladas on one occasion and quesadillas on another.  We have never been dissappointed and the service was acceptable or better.  We did have a guest who we ordered for ahead of time.  The guest was 30 minutes late and the waiter offered to make a fresh plate when the person arrived but we declined since it was our fault.  Over all I find Los Amigos to be a really great place for dinner.