I was a hard one but going with iced coffee - known as frappe
Next: J

J is a VERY HARD ONE... Going to have to be creative...

Jam, Quince - Marmalatha Kythoni

next: 'K' (gonna be a bunch of them to chose from!)

I agree, J is definitely a difficult one. That was a great answer
K - Kleftiko (this means stolen meat)

Next L

L is for lamb, a meat that shows up in lots of greek recipes and dishes.
Next is m.

M
Melitzanes Tiganites - Batter-Fried Eggplant

next: 'N'

N is for Nutmeg - a spice commonly used in Greek cookery

Next: O

O
Octopus Salad - Ktapodi

next: 'P'

P is for Polenta, a staple in many areas of Greece and throughout the Mediterranean.
Next is Q.....

A few of these letters are proving to be a challenge but managed to find one for Q.

Q for Quince - said to be one of the oldest fruits in existence which has been associated with Aphrodite

Next R

R for Rizogalo - this is a type of rice pudding

Next: S