The weekly Piatto per Tutti cooking class and the Foodie Trivia Contest are taking place this evening. Bar Lola is holding a wine dinner on Tuesday featuring Cotes du Rhone. On Wednesday, The Salt Exchange is running their weekly wine and canapes event. Halloween parties are on the calendar at both Frog & Turtle and Grace. Portland’s weekly Farmers’ Markets are being held in Monument Square on Wednesday and at Deering Oaks Park on Saturday. Hood’s New England Dairy Cook-off is taking place on Sunday. For more information on these and other upcoming food happenings in the area, visit the event calendar.