Mashed Yam Casserole

Directions

1. 1
   Preheat oven to 350. Lightly spray a 2 quart casserole dish with nonstick cooking spray.
2. 2
   Boil yam chunks in salted water until tender (about 10-15 minutes, depending on the size of your chunks). Drain.
3. 3
   Place cooked, drained yam chunks in a large bowl. Add banana. Mash together with a potato masher.
4. 4
   Add 3 tbsp butter and the sour cream. Mash to combine well. Mash in the salt, cinnamon, ginger and nutmeg.
5. 5
   Place mashed mixture into prepared casserole dish. Evenly drizzle with the 1 tbsp melted butter.
6. 6
   Bake uncovered, at 350 for 20 minutes or until top just begins to slightly brown.