I don't know any English vegetables that begin with z, but in Spanish, carrot is zanahoria.
zucchini
Well the food beginning with 'z' is hmm...
one variation of a hobby beginning with z is zen meditation.
Three syllable words beginning with 'Z' are:ZealouslyZaniest
Zoo, zèbre and zigzag are French words beginning by Z.
I googled "vegetables A to Z" and looked at various websites, and this is all I found: Hanover Salad, Horseradish, Horseradish tree, Huckleberry, herbs. I don't know if I would even count those as vegetables. Are you doing a crossword or something?
Zucchini, these are treated as vegetables but botanically they are fruits
Zucchinizuccini Zucchini Zucchinizucchinizucchini
zucchini
Zucchini
zucchini
zucchini
Zima