"Hi, Heidi? This Heather from the Y. The reason I'm calling is talk to you about the menus. On certain days, maybe you could bring something comparable for Snowflake to eat during lunch? Thursday we're having turkey and mashed potatoes and gravy. He won't be able to eat that."
"He likes Peanut Butter & Jellies," I offer.
"Oh yes. Well, there are five children with allergies in the room. It's a nut free room."