Henry's Restaurant, 10549 Stanford Ave., Garden Grove. Open Mondays through Saturdays from 6 a.m. until between 10 p.m. and 2 a.m., depending on the crowd. Kitchen closes at 5 p.m. on weekdays and 1 p.m. on Saturdays. (714) 537-9884. A tightknit but friendly crowd--off-duty cops, construction workers, bikers, letter carriers from the nearby post office--gathers for breakfasts, blue-plate special lunches, cold beers, retirement parties, you name it. Newcomers will feel welcome.