Excellent multiplex food shop on Ermou St. in the historical district of Athens. They use only the finest products for their foods, their sweets and coffee is amazing. Many options, including vegan and gluten-free. I love their contemporary approach to the traditional Greek cuisine. I strongly recommend Meliartos.
To go or to stay and enjoy your food there. Great coffee, decent pricing. Upstairs wine & dine, great wifi and cool environment.
They sell organic goodies made by local producers. Check them out!!