Mignon, the new the new 1960s French Steakhouse concept hatched by Emerging Brands (a division of Carlson Restaurants Worldwide) that was supposed to open by early fall, is choking on a piece of bureaucratic gristle. But it may be in the grip of a resuscitating Heimlich. This past Monday, the Plano Planning and Zoning Commission recommended that the Plano City Council grant the restaurant a special-use permit to serve alcohol. The council quashed a request for the permit by a vote of 7-1 on June 12. Why? The restaurant, under construction in the Lakside Market Shopping Center at Preston Road and Lorimar Drive by Turner Heritage Investments Ltd., ran afoul of a city zoning ordinance that prohibits alcohol service in a venue falling within 300 feet of residential zones. So Turner Heritage proposed to erect a 40-inch high screening wall between the restaurant and the nearby neighborhood. "The planning and zoning commission took a look at what the developer proposed, and the changes were substantial," says Plano development and review manager Tom Elgin. Elgin says the city council can consider waiving the 300-foot separation requirements if an alternate means of separation creates an actual walking distance that exceeds 300 feet (maybe there's a niche market for restaurant-maze construction in Plano). The city council will take up the issue on August 28.