Answer:
Don't eat too much food all at once.
Step-by-step explanation:
The proverb, "enough is as good as a feast" means that it does not make sense to have too much of something when you can be satisfied with just the right amount. It applies to both food and other things that can be used. This means that overindulgence in food and other things/activities is not right.
Only the right amount of something is needed at a particular point in time. In the context of the sentence above, it means that Ken should not eat all the food at a go.