Dinner in Addison
You're near the Addison Walk area which has a lot of chains (mostly skippable) but there've been good reviews of Volos (Mediterranean, tapas style) and Kenny's Wood-fired Grill (American).
If you're interested in any more ethnic cuisine you're gonna have to head west on Belt Line into Carrollton. Belt Line and Josey intersection has some more choices: Casa Vieja (Colombian), First Chinese BBQ (Chinese), and a bunch of Vietnamese pho restaurants - would recommend Pho 2006 or Pho Pasteur.
Kenny's is great (I have the open-face steak sandwich made with smoked Gouda instead of Brie), Chow Thai is good (Thai beef salad, chicken satay, mango & sticky rice) ... I really like the chicken fajitas at Uncle Julio's. The crab cake at Houston's is great ... it's one of those places where dressing to the nines pays off. (Much less attitude at any of the other places mentioned ...)
PS Houston's may conflict with your budget, esp. at dinner, depending on how much food you want to order. I believe the menu's available online? http://www.menupix.com/menudirectory/...
Chow Thai Restaurant
5290 Belt Line Rd Ste 144, Dallas, TX 75254
1125 N Union Bower Rd, Irving, TX 75061