When searching for uses of apples, I wanted to see how much RF an Apple was worth in the Culinary generator by clicking on the generator tab, see:

When you click the tab you see this:

When you go specifically to the generator tabs, and see what can be used with Culinary generator you can find apple, see:

Finally fixed!

This seems to apply to all food items in the culinary generator when seeing its "use" by using the 'u' key and selecting that generator tab.