You're talking THIS Saturday, right?
Swan Court is great, but not open for lunch on Sat.
Along 75 are Pappadeaux and Pappasito's, which are a cut above Bone Daddy's.
There's a cute lil Mom & Pop Italian place called Cafe Amore on Coit, just north of Belt Line.
There's a new Houlihan's at Belt Line and Inwood, NE corner.
http://www.houlihans.com/main.aspx
Or a Houston's across Belt Line from that.
http://www.hillstone.com/ , click Houston's, locations, etc.
Further down Belt Line in Addison is a ton of stuff from $ to $$$$. Champps, BJ's, Tony Roma's Ribs, Outback, Tejas de Brazil, etc.
At Greenville and 635 (SW corner) there is an Outback Steakhouse, Cheddar's and a couple of others.
I'll be there. Let me know how I can help do any of the planning. I'll be happy to help.