planning a picnic but trotters to go is closed. where to go?

Long story short.

Boy likes girl. Boy is planning on wining and dining girl at the tony bennett concert tonight at ravinia. I planned on bringing fruit, drinks and wanted to bring some great dishes for us to snack on. I had planned to go to trotters to go because I loved the quality and variety but unfortunetly I just found out they are closed. Where else can I go? Like many of you, I am willing to travel for that one great must have dish. Hopefully a place in the city, money really isn't an issue. I want the food to be as good as the company. Help me knock this girls socks off. Thanks

City Provisions.

They have a selection of sandwiches and sides, a well curated selection of craft beers and wines including their own collaboration beers, pre-prepped Ravinia Baskets (pricey, but you said money != object), and they're walking distance to the Ravenswood Metra Stop, which will take you right to Ravinia.

http://www.cityprovisions.com/delicatessen.htm

What kind of food does she like? You don't necessarily need a store like Trotters to go--you can pick up food to go almost anywhere.
Having said that, if you're looking for upscale picnic fare, I agree with the recommendation for City Provisions (1818 West Wilson Avenue) and would also add Publican Quality Meats (825 West Fulton Market) or Provenance (LOGAN SQUARE 2528 N. California Ave/ LINCOLN SQUARE 2312 W. Leland Ave).

Add Pastoral to the list, and you've got a pretty complete list of suggestions.