Filling:
1 medium butternut squash (roasted and mashed)
2 medium yams (sweet potatoes and mashed)
1/2 cup bread crumbs
1/2 cup grated parmesan cheese
1 Tbsp packed brown sugar
1/2 tsp cardamom
1/2 tsp cinnamon
Salt and pepper to taste
Sage butter sauce:
4 Tbsp butter
6-8 sage leaves
1 Tbspn lemon juice