We had a bad Wednesday night going into Rio Mambo's. We started at Mi Cocina in Southlake. About 10 minutes after ordering, we were informed that they didn't have the ribeye steak I had ordered. They offered whatever I wanted on the house, but I had my heart set on ribeye. We picked up and went to Rio Mambos for their ribeye. By the time we were seated and had ordered our iced teas, the urge for steak had passed. I quickly settled on tamales and a bowl of charro beans. Their tamales are some of the best of any restaurant in the metroplex. I don't love their chili con carne. The chili powder in the chili con carne is a little raw tasting to me, but the tamales are highly recommended. My wife was undecided. Our server, Jaydee, was very patient. She went over several menu options for my wife to consider. When my wife settled on a side salad with added avacados she was stumped for what dressing she wanted. Jaydee brought out our order complete with 3 or 4 small samples for my wife to try. The winner was cilantro honey dressing. Who knew? My wife normally doesn't eat cilantro. Jaydee did a spectacular job. Tea glasses stayed full of ICED tea. Ice is very important and this young lady understood what we wanted. Excellent ending to a night that had a rough start. Thanks Jaydee.

Celebrated my birthday here. Exceptional service and great food! We were all very happy with our selections.

There's not enough descriptive words to do Rio Mambo justice! Talk about flavorful, delicious and affordable. Our server was super sweet but only spoke a little bit of English so our drinks didn't quite turn out the way it should've but her kindness overshadowed. Ambience was nice, authentic and modern at the same time. Not too noisy although it was pretty packed and I barely found a parking spot. To be fair though, Rio is located in a strip of restaurants so unless you go at an off time I'll have the same issue.

I am actually very surprised I have not ever been here having been a resident of Grapevine/Colleyville for quite some time. It was really delicious! We came during lunch on a Tuesday and the atmosphere was that of a typical Tex Mex restaurant. Everything was clean and orderly and smelled amazing. As for the service, it was exceptional. We were a table of 3 that had many food allergies and our waitress was very patient, accommodating and we all received our orders as requested. I had the fajita beef tacos on corn tortillas and no onion - it was so good I forgot to take a picture and had to take one of my daughters instead. Hands down one of the most filling and tasty taco plates I've gotten from the Tex mex restaurants around town. Salsa was fresh, chips were crispy, I don't think you can ask for much more!