For Chinese food - your best bet is China Town on Bellaire close to the Bltwy. FuFu is pretty good and they are open until 2 a.m. daily. It is quite cheap as well. In the same center you will find a Asian Grocery, Korean Food, Japanese and Maylasian. I have tried both the Korean (Tofu Village- dont let the name fool you) and the Maylasian (Banana Leaf). They are very tasty and must contrast to basic asian food.
Mexican-Tex Mex- Chachos on Westheimer is wonderful for price and they are open 24 hours wil yummy margaritas.
Burgers- Try Kilburns www.kilburnstavern.com but it is a drive to this place. It is off of 290 and Barker Cypress.
If you are into Indian food- London Sizzler is pretty good. It is a British Indian place. In the same lot is Himalaya- which is Pakistani food. They have wonderful biryani. This center is located on SW Frwy and Hilcoft. NWC
You must try Kilburns' burgers. They are the best in Houston. Not a popular place since it is on teh outskirts but worth the drive for me and my husband (we live in town and 30 mins away). The burgers are always consisent no matter the the time of day, day of the week or the toppings. Juicy, great bread, and as a bonus- good beer! www.kilburnstavern.com