After 58 years, the Carson Nugget's Thanksgiving dinner is an institution in the community.The dinner, from 11 a.m. to 2 p.m. Thursday, is free to anyone, from families who cannot afford to prepare a Thanksgiving feast to those who choose the company of strangers on the holiday."Some people come year to year, I think that matters that they know we really care," Nugget General Manager Star Anderson said.The dinner is on the second floor of the casino in the banquet hall.This will be the first Thanksgiving cooking at the Nugget for Executive Chef James Tjeltveit, who started in time as …