I don't know Frisco super well. It's a long ways north of where I live in Dallas.
Fav BBQ Spots - Smokey Rose by the Arboretum, which is by our house. Pecan Lodge in Deep Ellum east of downtown. Oak'd off of Greenville Ave.
Tex Mex - I like Manny's Uptown. Torchy's is a good taco place in our neighborhood.
Steaks - I like the original Bob's Chop on Lemmon. Nick and Sam's off Maple is good, too. The back par used to be frequented by some of Dallas' finest escorts. And not trashy escorts, but high priced escorts, fwiw.
Sushi - Uchi on Maple is known more for it's environment than the sushi. You typically see pro athletes or a celebrity or two.
Hope that helps.