Directions:
Preheat oven to 375F. Pour the sweet potato and squash cubes onto a large baking sheet lined with parchment paper.
Drizzle generously with olive oil and salt and roast until tender, 23-30 minutes. Cool slightly before transferring to a food processor fitted with the “S” blade.
Purée the roasted veggies and transfer to a large mixing bowl. Add in the remaining casserole ingredients and mix well. Pour into an oven to table dish. Combine the topping ingredients and crumble over the casserole.
Lower the oven to 350F and bake for about 40 minutes, until the topping is golden brown.