"I am a food upon your plate,
When you partake of me in dawning light.
Yet I become a drink inside your glass,
After dinner time at night."
Note: One word fits both clues
(In reply to But...
by Kevin K-C)
From your reference
v. toast·ed, toast·ing, toasts
<DD>To drink to the health or honor of.</DD>
<DD>To propose or drink a toast.
If you drink it, it is a drink.