Are you hungry without any clue what you actually want? This happens every day. Just generate a random food list to help you figure it out.
Do you cook? Create a random grocery list and try to make a decent meal out of those ingredients. For more specific cooking inspiration, try a random recipe.
Just looking to kill some time? Generate food pairs and see how many in a row you think you could stomach. Romaine lettuce and turkey is easy. Could you eat hash browns and Marsala wine? How about tuna and vanilla ice cream?