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mashed rutabagas with miso butter in a casserole dish with a spoon and a napkin off to the side
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Mashed Rutabagas with Miso Butter

Make our mashed rutabagas with miso butter – a perfect holiday or anytime side. These rutabagas are made with minimal ingredients and are packed with flavor!
Prep Time10 mins
Cook Time45 mins
Total Time55 mins
Course: Side Dish
Cuisine: American
Diet: Gluten Free, Vegan, Vegetarian
Keyword: mashed rutabagas, mashed rutabagas with miso butter, miso, miso butter, miso butter mashed rutabagas, miso butter rutabagas, miso rutabagas, rutabagas
Servings: 4
Calories: 226kcal


  • medium-sized pot
  • potato peeler
  • knife
  • cutting board
  • measuring cup and spoons
  • small bowl
  • whisk
  • strainer
  • hand mixer


  • 3 lb rutabagas
  • 4 Tbsp vegan butter at room temp (I used Earth Balance buttery sticks)
  • 2.5 Tbsp white miso
  • ½ cup unsweetened oat milk (Or any kind of unsweetened unflavored plant milk)
  • 1 tsp onion powder
  • 1 tsp garlic powder
  • salt and pepper to taste


  • Bring a medium-sized pot of water to a boil. While the water heats, peel the rutabagas. If the ends are too tough cut them with a knife. Slice the peeled rutabagas into 2-3 inch pieces and place in the pot. Cover and simmer for 45 minutes or until the rutabagas are fully cooked.
  • If you forgot to leave out your vegan butter to thaw, microwave for 10 seconds. Add butter to a small bowl and whisk in miso until combined. Put the miso butter in the refrigerator to chill.
  • Strain the water and return the rutabagas to the pot. Add oat milk, miso butter, onion powder, and garlic powder and use a hand mixer to beat the rutabagas until mashed. Taste the rutabagas and add salt and pepper to taste.
  • (This last step is optional) Add the mashed rutabagas with miso butter to a casserole dish, and broil in the oven for 5-7 minutes or until you get some browning. Top with additional salt and pepper and serve.


Nutrition is an estimate and does not include optional ingredients.  
Just a heads up – this page contains some affiliate links which means I make a little bit of money if you click on select links and make a purchase. I only recommend products that I use on the reg!


Serving: 283g | Calories: 226kcal | Carbohydrates: 26g | Protein: 5g | Fat: 12g | Saturated Fat: 3g | Polyunsaturated Fat: 3g | Monounsaturated Fat: 5g | Trans Fat: 0g | Cholesterol: 0mg | Sodium: 547mg | Potassium: 745mg | Fiber: 6g | Sugar: 11g | Vitamin A: 76IU | Vitamin C: 57mg | Calcium: 144mg | Iron: 2mg