Grapevine MIlls Mall
Dallas is such a large area, it's tough to say.
If you mean *food*, this is a good start:
If you mean shopping in general, you'd probably like Bishop Arts District:
It's a bunch of shops in a little area. As walkable as Dallas gets, really.
For indoors - NorthPark; Outdoors - Shops at Legacy. Both have national chain and local shops
Dallas is such a large area
Good Records on Greenville Ave is one of the best record stores in the country: http://www.goodrecords.com/
1808 Lower Greenville Ave.
Dallas, TX 75206