I have a good appetite.
He has a good appetite.
I have a good appetite today.
I have a good appetite this morning.
The long walk gave him a good appetite.
There is a Polish proverb which states that a good appetite needs no sauce.
There is a Polish proverb which observes that a good appetite needs no sauce.
There is an Italian proverb which states that nothing improves the taste of pasta more than a good appetite.