BORDER GRILL— Multiple locations. Discover bold Mexican fare by chefs Mary Sue Miliken and Susan Feniger. $$ Open for lunch and dinner daily. Mandalay Bay, 702.632.7403; Forum Shops at Caesars, 702.854.6700. CADILLAC MEXICAN TEQUILA & KITCHEN BAR— Golden Nugget. Mouthwatering Mexican food and more than 70 boutique tequila selections. $$ Open M-F, 11 am-1 am; Sa, 9 am-1 am; Su, 9 am-midnight. 702.386.8169.