Like the mainstream tradition of “saying grace,” this is about blessing our food and being thankful for it. Blessing food can be done at all stages of preparation – even harvest. Some kitchen witches perform blessings over their crops as the grow, bless bulk ingredients (like flour, sugar, spices) before putting them in the pantry, or etc. Yet anyone can bless their plate before eating at least.
Here is a simple pentacle invocation and food blessing. You can use it over ingredients while you cook and/or over the plate before you eat.
Draw a pentacle in the air over the food with your finger or a cooking implement: