Denver — As part of its brands’ continued transformations, REGO Restaurant Group — parent company of fast-casual sandwich chain Quiznos and regional Mexican chain Taco Del Mar, among other brands — has inked a strategic partnership and development deal with BCubed Manufacturing LLC, a Michigan-based manufacturing company that makes high-quality, fully outfitted freestanding drive-thru restaurants. With approximately 650-square-foot layouts designed for flexibility and efficiency, BCubed restaurants include both drive-thru and walk-up windows. Designed to fit on parcels of land that are too small for traditional restaurant development, BCubed restaurants contribute …