In the episode "World War Three", Jackie asks "What does he eat?"
There are quite a few food references in Doctor Who. (I will only reference new-Who as I am unfamiliar with older material.)
We can talk about the use of banana (9 uses it several times, 10 invents the banana daiquiri) or his hatred of pears.
We can also note that the TARDIS has been used by Clara as an oven to cook a turkey, with complicity of the Doctor.
Do we have any indications concerning the Doctor’s dietary regime?