When completely cooled, place the mashed potatoes in an airtight container, cover, and refrigerate. Unlike in a classic sweet potato casserole, you won’t find any marshmallows, brown sugar, or maple syrup here. Serve these mashed sweet potatoes as a side to proteins such as chicken, turkey, or pork, and you’ve got an easy meal ready in a flash. Mashed Sweet Potatoes Recipe Ingredients. Enjoy this simple, dairy-free healthy sweet potato mash recipe; we spiced it up by adding ground cinnamon and cardamom. We know you’ll love this recipe, as it can be easily added into your weekly meal prep for lunch or dinner time, or put it to use as a show-stopping side-dish. This recipe for Mashed Sweet Potatoes can be completely prepared up to 2 days ahead. If you love sweet potatoes, you have to try this recipe! Mashed Sweet Potatoes Recipe. The perfect addition to any holiday meal, this Creamy Savory Mashed Sweet Potatoes is so easy to make. This easy mashed sweet potatoes recipe takes only five (5) ingredients: yam, butter, milk, salt and pepper. Made with simple wholesome ingredients, this mashed sweet potatoes recipe is rich and creamy without being a heavy side dish. Naturally sweet on their own, sweet potatoes pair perfectly with savory flavors such as chopped fresh thyme, salt, and pepper. This crowd-pleasing side dish is so buttery, creamy and silky smooth. The sweetness comes from the potatoes themselves. Most importantly, it is absolutely delicious. Reheat in the oven, covered, at 350F for 15 to 20 minutes. My favorite thing about this recipe is that it really lets the sweet potatoes shine. Also, unlike sweet potato casseroles, or buttery mashed potatoes, this MAKE AHEAD MASHED SWEET POTATOES.