The interior dining room of the Blue Collar restaurant on Biscayne Boulevard in Miami. Blue Collar, the beloved comfort-food destination in Miami’s MiMo neighborhood, will be closing this Sunday, according to a post on the restaurant’s social media. “After many unforgettable years, this Sunday will be our final day of service on Biscayne Blvd. There are truly no words to express how grateful we are for the love, loyalty and support Miami has shown us throughout this journey,” the statement said.