Iconic full-service burger chain Big Boy will open an upscale fast-casual test store in Michigan this summer, in a nod to changing times and consumer tastes, BurgerBusiness reports. The new concept, dubbed @burger, will be completely separate from Big Boy's full-service eateries. "There are a lot of fast-casual hamburger restaurants coming up, but many of them are throwbacks to '50s diners in style. We'll be nicer," said CEO Keith Sirois.
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