Phyllo Galette with Butternut Squash, Feta and Olives
1 pound butternut squash, peeled, seeded and diced 2 tablespoons olive oil, plus more for greasing and brushing pastry 1/4 teaspoon crushed red pepper flakes Freshly ground black pepper 8 sheets phyllo dough 2 ounces feta cheese, crumbled 12 kalamata…