The national Top Chef Tour rolls through Lincoln Park this weekend with free cooking demos and samples by Radhika Desai, season five “cheftestant” and former executive chef at Between Boutique Cafe & Lounge, and Antonia Lofaso, who competed on season four. It’s first come, first served. Sat-Sun 5/30-5/31, 10:30-11:30 AM, noon-1 PM, and 1:30-2:30 PM, south end of Lincoln Park, next to Green City Market.