I have never experienced slower service than I did at Walnut Grill in Waterworks. My family and I went at 12:30 on a Saturday afternoon and we didn't get out of there until after 2:30. That's ridiculous! All we ordered was the lunch combo of soup and salad. How hard is that to make? The area where we sat had multiple empty tables around us, so it's not like the place was packed. Also, the French Onion soup was awful. Super sweet and I could tell it sat around forever before it was served to us because the cheese on top was one big solid mass that was basically inedible. So, in short, my family and I were there for two hours and all we got was half of a caesar salad and some yucky soup. Do yourself a favor and drive to the next plaza and eat at Zoup! That place is awesome, cheaper, and much much faster.