South Shore Grill   Started by Linda Gehring (spouse of Ted Tsakiris of Teddy's Bigger Burgers), South Shore Grill is now owned by Bruce Bryant and the cheap, quick food with a gourmet twistis still in place. South Shore serves plate lunches, heaping sandwiches, well-stuffed burritos and salads. The boldly colored interior might remind you of a clown, but they aren't fooling around with half-pound burgers topped with chipotle aioli; double-orders of fish tacos, and Caprese salad made with mozzarella. The plates all come with tuna-mac salad and the signature vinegary slaw. Save room for desserts.  3114 Monsarrat Ave. 734-0229, 10:30 a.m.-9 p.m. daily. Cash only. $.  Web site: www.hawaiidiners.com