Preheat oven to 375 degrees Fahrenheit.

Grease a 9-inch pie dish with cooking spray.

In a large bowl, combine ricotta cheese, parmesan cheese, thawed and drained spinach, eggs, sliced scallion, crumbled feta cheese, lemon juice, dried dill, salt, black pepper, and ground nutmeg.

Place one sheet of phyllo dough in the prepared pie dish.

Brush the phyllo dough with olive oil and sprinkle with 1 tablespoon of breadcrumbs.

Repeat layering process with the remaining phyllo dough sheets, olive oil, and breadcrumbs.

Pour the spinach mixture into the phyllo-lined pie dish.

Fold the edges of the phyllo dough over the filling to seal the pie.

Cut four steam vents into the top of the pie.

Cover the pie and bake for 45 minutes, or until golden brown.