Prassopita (Greek Potato and Leek Pie)

3 Tbsp olive oil
4 c cleaned, chopped leek whites and greens (about 4 leeks)
3/4 lb Idaho potatoes, scrubbed, peeled and grated
1 egg
2 Tbsp milk
2 Tbsp chopped fresh dill (or 2 tsp dried)
1/4 tsp pepper
8 sheets phyllo dough, thawed and refrigerated until ready to use
1 c crumbled feta cheese
1/4 c kalamata olives, coarsely chopped

Preheat oven to 375 degrees. Spray a 9"x13" baking pan with cooking spray.

Heat 2 tsp oil in a large nonstick skillet over medium heat, then add leeks. Cook until they have softened but are still bright green and have not caramelized, about 10 minutes. Transfer to a bowl and let cool about 10 minutes. Put potatoes, egg and milk into a large bowl and mix to combine, then stir in dill and pepper.

Place remaining 2 Tbsp + 1 tsp olive oil in a small cup or bowl. Remove phyllo dough from fridge, take sheets out of box and unroll so they're flat. Cover with a sheet of plastic wrap and then a clean, damp dishtowel.

Place a sheet of phyllo on bottom of baking pan. Using fingers, lightly dot with olive oil. Place another piece of phyllo on top, gently press down, and continue until you have 4 layers. Do not oil the last sheet.

Place half the potato mixture on top and sprinkle with half the feta and half the olives. Top with 1 sheet phyllo and, using fingers, lightly dot with olive oil. Continue until you have 4 layers. Oil the last sheet, too, using up any remaining oil.

Bake at 375 degrees until golden brown, about 45 minutes. Serve hot or at room temperature. May be made in advance and frozen, then reheated at 350 for 15-18 minutes.

NOTES
From Hannaford.
Untried.