My thoughts, unless someone has a better idea was to drive down to Rough Creek Ranch for a really nice lunch. They serve lunch until about 2:00pm, so if we leave about 10:00-10:30am and cruise down to the ranch that would put us there for a little after 12:00.
http://www.roughcreek.com/
I have stayed at the ranch and it is very very nice, they have a beautiful lodge and bar and activities. Rough Creek is located near Glen Rose about 90 miles from the DFW area.
I would like to make reservation for lunch, so if this is something you would like to do, let me know and I will make the reservations.
Thanks, db