If you want to edit or delete a meal you have created, here’s what you should do:
Select the custom meal you have created.
Tap on Options at the top right of the pop-up and select whether you want to “Edit Meal” or “Delete”.
For editing, click on “Edit Meal”, and update the meal details you want to change. Then once done, click “Preview”, and hen “Update Meal”.
For deleting, click on “Delete” and confirm by clicking on “Remove Meal”.