Greek Squash and Spiced Lamb Pie

Name: Greek Squash and Spiced Lamb Pie
Ingredients: 2 acorn squashes; 5 tablespoons olive oil; 2 tablespoons shallots, finely chopped; 1 small garlic clove, finely chopped; 1 pound ground lamb; 1/4 teaspoon cinnamon; 1/4 teaspoon dried oregano; 1 pinch allspice; 1 leek, white and some green, washed and finely chopped; 1/4 cup fresh mint, chopped; 1/2 cup walnuts, toasted and finely chopped; 4 ounces feta cheese, well crumbled; 1/4 cup dried dates, finely chopped; egg, beaten; 1 pound phyllo dough, thawed at room temperature; olive oil for brushing; salt and pepper to taste