Possible Clues:

• Restaurant where customers serve themselves
• Around charity event, breeze up to place of refreshment
• School dining area
• Self-help facility agency accepted after electrics installed
• Where one may serve oneself tea if care is exercised
• Mixture of feta and rice served by a restaurant
• After a holiday in Costa Rica, recall fine restaurant
• School room
• Canteen
• Fair held in estate, perhaps — one with a buffet