Specials Menu Board

I was playing my game and have some counters that have low food amounts, obviously I would like the customers to finish those off first so I can clear the counters for new food, but the customers eat the food that I have plenty of as well, so I thought of a specials menu, where you set up the food you want rid of but don't wanna waste the food, you place them on the board menu and the customers ONLY eat that food, and you can also discount the food a bit so the customers feel like they are getting a better deal while helping you out :)