Iron Cactus is a restaurant in Dallas with an amazing happy hour. Come cool off with a mouth watering $3 house margarita (frozen or rocks), well drink, house wine, any beer, and $5 Mexican Martini and Texas Tea. Most delicious appetizers are 1/2 price. Happy Hour is from 4pm-7pm Monday through Friday. Iron Cactus happy hour is guaranteed to satisfy your thirst and put a smile on your face.