Adding to the string of good restaurants closing lately, Tizi Melloul (531 N. Wells St.; 312-670-4338) will shut its doors May 15th after 11 years of business. One of Tizi’s owners, Steven Ford, says it was sold to as-yet-undisclosed parties for another restaurant concept. Ford and his business partner, Michael Schimmel, plan to concentrate their future efforts on Pork Shoppe (2755 W. Belmont; 773-961-7654), their barbecue spot in Avondale that’s now slated to open June 1st. “We feel it’s a concept that will travel,” Ford says.