sweet potato layer
2 pounds sweet potatoes, peeled and cubed
2 tablespoons brown sugar
2 tablespoons maple syrup
1/3 cup canned lite coconut milk
2 teaspoons vanilla extract
1/2 teaspoon cinnamon
1/4 teaspoon nutmeg
1/4 teaspoon salt
2 tablespoons butter

oatmeal coconut pecan crumble
1/2 cup whole, unsalted pecans, chopped
1 1/2 tablespoons brown sugar
1/4 cup unsweetened, flaked coconut
1 tablespoon whole wheat pastry flour
1/4 cup old-fashioned oats
1/2 teaspoon cinnamon
pinch of nutmeg
pinch of salt
2 tablespoons butter, softened
1 cup mini marshmallows