This recipe dresses up roasted sweet potatoes with an easy to make and insanely delicious miso tahini butter. Whether served as a side dish or as a main beside a big salad, this healthy recipe is always a hit.

A close up of a roasted sweet potato cut open with miso tahini butter on top and a sprinkle of sesame seeds.

You're looking at our favorite roasted sweet potatoes recipe. The miso tahini butter elevates this simple dish to something truly special. 

Why we love this roasted sweet potatoes recipe

  • 5 minutes of hands-on prep and you get to relax while they hang out in your oven and cook themselves.
  • Miso tahini butter (just those three ingredients!) is so delicious that you'll be tempted to try a little spoonful before your sweet potatoes come out of the oven.
  • That butter we swoon over adds the ideal savory element to balance the natural sweetness of the potatoes.
  • It's a versatile recipe. Turn these into a vegetarian lunch or light dinner with a green side salad. Or serve them beside a larger dinner. They also make a great side at your Thanksgiving or Christmas dinners. (Although I would cut them in half for either of those as there's always SO MUCH food.)
  • They reheat beautifully so they're great for meal prep.
  • They are a healthy, sugar-free recipe that can easily be made vegan and gluten-free.
Six roasted sweet potatoes in a white baking dish with miso tahini butter and some sesame seeds over top.

How to roast sweet potatoes

Oven roasted sweet potatoes are literally the easiest things in world to make.

  1. Rub a little oil on the whole sweet potatoes.
  2. Put them into a baking dish.
  3. Put them into your oven.

That's it! When you take them out of the oven, cut them open and put a spoonful of the miso butter on top. SO easy!

How long to bake sweet potatoes

Sweet potatoes vary widely in size, and therefore their cooking time varies, too. The sweet potatoes in this recipe are small (about 6-ounces) and take 35-40 minutes to bake at 400 degrees Fahrenheit.

Medium to large sweet potatoes can take anywhere from 45-60 minutes to roast.

To test if they're done, press the top with a spoon. If they feel soft, insert a knife into one of them. If it's soft throughout, it's ready!

Miso tahini butter in a small white bowl.

What is tahini miso butter

That little bowl up there is brimming with a secret sauce that transforms nearly everything. Made of the three ingredients in the title, it couldn't be any easier to whip up. Stir them together and you've made a little potion that will give you a big bang for your cooking buck.

This recipe makes enough for the baked sweet potatoes. But you can easily make it in larger quantities and keep it in your fridge to spice up all your meals. Try it on:

Cut open roasted sweet potatoes in a baking dish with melting miso tahini butter over the top.

What to serve with roasted sweet potatoes

If you're serving these as a vegetarian main course, the Roasted Beet and Kale Salad with Maple Candied Walnuts or the Roasted Brussels Sprouts Caesar Salad are nice sides. Or make a simple green salad tossed in one of our favorite salad dressing recipes.

These mains go nicely with these roasted sweet potatoes:

A roasted sweet potato on a plate with some salad and miso tahini butter melting on top.

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Favorite Sweet Potato Recipes

A close up of a baked sweet potato cut open with miso tahini butter on top and a sprinkle of sesame seeds.

Roasted Sweet Potatoes with Miso Tahini Butter

Yield: 6 small sweet potatoes
Prep Time: 5 mins
Cook Time: 40 mins
Total Time: 45 mins
This recipe dresses up roasted sweet potatoes with an easy to make and insanely delicious miso tahini butter. Whether served as a side dish or as a main beside a big salad, this healthy recipe is always a hit.

If you love this recipe as much as we do, let us know with a 5-star rating!

4.92 stars (24 ratings)
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Ingredients

  • 6 small sweet potatoes, about 6-ounces each
  • 1 teaspoon avocado oil
  • Sesame seeds, for garnish

Miso Tahini Butter

  • 1 tablespoon salted butter, at room temperature (dairy-free, if needed)
  • 1 ½ teaspoons white miso, gluten-free miso, if needed. see notes
  • 1 ½ teaspoons tahini

Instructions 

  • Preheat your oven to 400 degrees.
  • Rub the sweet potatoes with the avoacado oil and put them in a baking dish. Roast for 35-40 minutes, or until they are soft.
    6 small sweet potatoes, 1 teaspoon avocado oil
  • While the sweet potatoes are roasting, mix the tahini miso butter ingredients together in a small bowl.
    1 tablespoon salted butter, 1 ½ teaspoons white miso, 1 ½ teaspoons tahini
  • When the sweet potatoes are soft, remove them from the oven and carefully cut them open. Top with the miso butter and a sprinkle of sesame seeds.

Notes

If eating gluten-free is important to you, make sure to read the miso ingredients carefully as many contain gluten. Shiro Miso and some brown rice miso are gluten-free. Substitute these for the white miso, if needed.
If you have a different type of miso on hand, feel free to use that rather than buying white miso.
Serving: 1 sweet potato, Calories: 146kcal, Carbohydrates: 27g, Protein: 2g, Fat: 3g, Saturated Fat: 1g, Polyunsaturated Fat: 1g, Monounsaturated Fat: 1g, Trans Fat: 1g, Cholesterol: 5mg, Sodium: 145mg, Potassium: 448mg, Fiber: 4g, Sugar: 6g, Vitamin A: 18504IU, Vitamin C: 3mg, Calcium: 42mg, Iron: 1mg
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A close up of a baked sweet potato with tahini miso butter and the recipe title on top of the picture.