I have lived in NRH all my life and I still go to Fort worth for good grub, though Grapevine/Southlake has some good stuff now as well.
That said, I highly recommend checking out the following:
Jack's off the Wall)
White settlement road just west of Angelos Barbecue
all kinds of good stuff here, including a grilled Meat loaf that is the Best I have ever had (sorry Mom
Located on Hulen just south of I-30 (behind Central Mkt)
Excellent Indian food, I am partial to the Chicken Tikka Marsala as well as the Naan bread.
just south of TCU campus off of University
Excellent Tempura fish tacos and Shrimp quesadillas, interesting atmosphere if a bit loud at times
In Grapevine on Hwy 26 just south of 114
Chain restaurant, French/cajun influenced menu, excellent baked goods. I've never had a bad meal here.
Hope this helps,