Lighter Sweet Potato Casserole Recipe

Experience a healthier spin on the beloved Sweet Potato Casserole. This lighter variation smartly substitutes butter and cream with low-fat vanilla yogurt and uses limited marshmallows for topping.


  • 3 lbs. sweet potatoes, peeled and cut into 3/4-inch cubes
  • 1 cup low-fat vanilla yogurt
  • 1 tsp. cinnamon
  • A pinch of nutmeg
  • A pinch of salt
  • Brown sugar (optional)
  • 4 large egg whites OR 2 large whole eggs, lightly beaten
  • 3/4 cup chopped pecans
  • 1/2 cup mini marshmallows


  1. Preheat your oven to 350°F and lightly grease or spray a 2.5-quart casserole dish.
  2. Place the sweet potatoes in a medium saucepan, adding enough water just to cover them. Bring the water to a boil over high heat, then reduce to a simmer and cook the potatoes until they are fork-tender, about 5-7 minutes. Drain afterward.
  3. Return the potatoes to the pot and mash them using an egg beater. Alternatively, you can transfer the potatoes to a stand mixer bowl and beat them there.
  4. Combine the mashed sweet potatoes with yogurt, cinnamon, nutmeg, and salt, and continue to beat. Taste the mixture. Should you prefer a sweeter flavor, gradually add brown sugar, one tablespoon at a time, tasting after each addition.
  5. Once you reach the desired sweetness, blend in the eggs.
  6. Transfer the sweet potato mixture to the prepped casserole dish.
  7. Bake for 30 minutes. Subsequently, evenly distribute the pecans and marshmallows on top and continue baking until the marshmallows become puffy and lightly browned, another 10-15 minutes.


This Lighter Sweet Potato Casserole Recipe strikes an excellent balance between indulgence and healthfulness. Its use of low-fat vanilla yogurt instead of traditional ingredients like butter and cream creates a guilt-free alternative that's still rich in flavor. The minimalist use of marshmallows preserves the delightful texture that makes this dish a classic, without loading it with extra calories. Whether it's for a holiday dinner or a weeknight treat, this recipe delivers on taste while supporting your health-conscious choices. Enjoy this lighter take on the timeless Sweet Potato Casserole, and relish the satisfaction it brings without the heaviness of common, richer recipes.