Definitely a big plate of greens (Horta) for each person at home is traditional. Not only to fill people up, but to keep them regular
The North uses more cornmeal, and has the cornmeal pies and other cornmeal dishes.
Spanakorizo would be more common in the South and on the islands, for a dish that fills people up.
Also, it’s Lent now, so the people who observe subsist on vegetarian and pescatarian food until Easter. Tons of greens and tons of lentils and chickpeas.
The Orthodox started their Lent yesterday on Clean Monday.