Matlock's is one of those carts down in "the pod" off SW 4th Avenue. I had walked by too many times and last week with the cold, just needed a $3.75 1/3lb burger to walk with me.
The burger was pretty good. Freshly cooked with chedder, a toasted bun and pretty much anything you want on it. I didn't really get to ask for it Medium, but in the end, it tasted pretty juicy.
The cool part about the cart is the owner does all the dressing. There were about 5 other customers who came up and ordered and when it came to dress the dog or burger, the owner quizzed the customer. The best part was the condiments. He controlled them. In this day when colds are ubiquitous, I'm glad not everyone is grabbing at the mustard spoon.
For a cart burger, I give it a 3.5/5.