This prayer may be prayed silently and visualising tracing the Fora, if in public.
(Trace the Fora https://deanic.com/prayers-and-rites/tracing-the-fora/ over the food while saying):
O, Lady of All Nature, we thank You for the gifts of your creation. May this food be blessed in the Name of the Mother, and of the Daughter, and of the Great Mother. Blessed is She.