I am going to be passing through Austin on my way from Fort Worth to San Antonio. I will pass through around lunch time while going, and then around dinner time when returning the next day. I would not like to venture too far off of I-35, as I would not like to prolong my trip by TOO much time. Any suggestions for good restaurants to stop at for either lunch or dinner? My budget will be roughly $20. I eat seafood and fish but not other meat, and I like all kinds of food.