To find any custom foods, recipes, meals, and meal plans that you've created, select Foods from the main (left) navigation menu.
Then, select the My Foods tab. You'll find each type of custom option under the appropriate sub-tab.
Select the More Options (⋮) button, then choose the appropriate option from the menu.
If you're deleting an item, you'll be prompted to confirm your choice.
If you're editing an item, the appropriate editor will then open where you can make your changes. Be sure to save any changes when finished.