Portland-based fast-casual restaurant Little Big Burger will open a minimum of three new locations in Austin by 2021, including one at 1648 E. Sixth St. by early 2018. The expansion is part of a multi-unit franchise deal between Little Big Burger's owner, Chanticleer Holdings, and Austin-based restaurant group Big Star BG, according to an announcement on Chanticleer’s website. 503-274-9008. www.littlebigburger.com