Not a eating place but a really neat ride, go through Post on 84, go on south to 4 miles past Justiceburg, turn right on FM 1269. This is the road to Fluvanna. About 5 miles you will hit the south edge of the Caprock, whne you see a place to pull off and stop, take it and look back to the north, a great view of what we call The Texas Badlands.
Then on to Fluvanna and take FM 672 and it will take you back to highway 84.
This is a Google map screenshot looking north about 6 miles after you leave highway 84,