greek spinach, cheese and chickpea pot pie

Ingredients

• 5 tablespoons olive oil, divided
• 1 1/4 cups chopped green onions
• 1 pound frozen chopped spinach, thawed and squeezed dry
• - finely grated rind of 1 lemon
• 1/2 cup chopped flat-leaf parsley
• 1/2 cup chopped fresh dill
• 4 ounces feta cheese, diced
• 1 cup drained, canned cooked chickpeas
• 1 cup low-fat cottage cheese
• 1/2 cup milk or reduced-sodium vegetable broth
• 1 - egg
• 1 tablespoon lemon juice
• 1 teaspoon salt
• - freshly ground black pepper
• - fillo dough in sheets