Mashed Sweet Potatoes with a Cinnamon Nut Topping: Chopped … Savory Mashed Sweet Potatoes: Made with minced garlic, fresh chopped parsley, parmesan cheese, salt and pepper. Meanwhile, mix together 2 tbsp grated parmesan cheese, 4 chopped sage leaves (optional), 1/4 tsp garlic powder and 1/2 tsp smoked paprika in a small bowl. Both Parmesan cheese and Gruyere cheese are be tasty. Brush the tender sweet potato skins with a little olive oil and sprinkle with the cheese … After the sweet potatoes have finished boiling, cut them into cubes and place them in a large casserole dish. Add cheese directly to the Mashed Sweet Potatoes. For more savory Mashed Sweet Potatoes: reduce or omit the maple syrup and either add cheese or additional herbs. Mash the sweet potatoes completely, then add the cream cheese and incorporate thoroughly into the sweet potatoes… For Browned Butter Mashed Sweet Potatoes…