The Boise-based 3 Brothers Restaurants opened theTri-Cities’ first Del Taco fast food Mexican restaurant in November at 155Wellsian Way, near the Richland Fred Meyer and Goodwill stores.The 2,800-square-foot restaurant serves tacos, burritos and tostadas, aswell as burgers and fries. The restaurant seats up to 86. The nearest Del Taco is in...