Twice Baked Sweet Potato Casserole Twice baked sweet potato casserole is a delicious, single-serve side dish for your holiday table! You can prep them ahead and reheat before serving. Gluten-free, paleo and vegan options! How can I make this twice baked sweet potatoes recipe gluten-free? Vegan? Paleo? Gluten-free: swap the all purpose flour for almond flour. [...]