If you’re looking for a cozy, nourishing meal that supports your health goals, this Japanese Sweet Potato Miso Soup is it. Made with simple pantry staples like ginger, garlic, and miso, this silky and creamy soup is vegan, gluten-free, and packed with nutrients. Whether you’re craving something comforting for dinner or searching for healthy vegan recipes for weight loss, this recipe absolutely delivers.

How to Make Japanese Sweet Potato Miso Soup:​

Why You’ll Love This Japanese Sweet Potato Soup

This isn’t your average sweet potato soup. It features Japanese sweet potato (the kind with purple skin and a pale, chestnut-flavored flesh) blended with savory miso, ginger, and creamy coconut milk. Here’s what makes this recipe stand out:

  • Vegan & gluten-free
  • High in fiber and complex carbs for fullness
  • Quick prep time with minimal ingredients
  • Naturally creamy without added oils or thickeners
  • Great for meal prep or a light dinner
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Ingredient Highlights & Their Health Benefits

This sweet potato miso soup is more than delicious—it’s loaded with ingredients known for their health-promoting properties:

  • Japanese Sweet Potato: Rich in fiber, vitamin A, and antioxidants that support blood sugar balance and gut health.
  • Miso Paste: A fermented food that supports gut health and digestion.
  • Ginger: Known for reducing inflammation and aiding digestion.
  • Garlic: Contains allicin, which may help boost immunity and heart health.
  • Green Onion: Adds prebiotic fiber and flavor.
  • Coconut Milk: Dairy-free creaminess with protein and healthy fats.
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Why This Soup Is Great for Weight Loss

If you’re trying to eat lighter without sacrificing satisfaction, this soup is a perfect dinner option:

  • Low in calories but high in fiber, helping you stay full longer
  • Nutrient-dense but not heavy, so it supports a calorie deficit
  • Easy to digest, making it ideal for evening meals
  • Minimal cooking effort, so you’re less tempted to order takeout
  • Vegan and whole food–based, which supports anti-inflammatory eating
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{If you like this recipe you’ll love my GREEN CURRY and my SOBA NOODLE SALAD.}

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5 from 4 ratings

Japanese Sweet Potato Miso Soup

Yield: 2 Servings
Creamy Japanese sweet potato miso soup that's vegan, healthy, and perfect for weight loss. Easy, cozy, and ready in 30 minutes.
Total: 30 minutes
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Ingredients

  • 1 Japanese Sweet Potato, peeled and cubed
  • 1 tbsp Avocado Oil
  • 1 Small White or Yellow Onion, peeled and diced
  • 2 cloves Garlic, roughly chopped
  • 1 inch Ginger, roughly chopped
  • 2 cups Vegetable Broth
  • ½ tsp Sea Salt
  • ¼ tsp Ground Black Pepper
  • 1 tbsp Miso Paste, mixed with 1 tbsp of water to loosen
  • ¼ cup Full Fat Coconut Milk
  • 2 Green Onions, chopped, for garnish
  • Toasted Sesame Oil, for garnish

Instructions
 

Sauté aromatics

  • In a pot over medium heat, warm the oil. Add the chopped onion, garlic, and ginger. Sauté until softened, about 5 minutes.

Add sweet potato & broth

  • Add the cubed Japanese sweet potato and vegetable broth. Bring to a boil, then reduce heat and simmer for about 15 minutes, or until the potato is fork-tender.

Blend the soup

  • Remove from heat. Use an immersion blender (or carefully transfer to a blender) and blend until smooth.

Stir in flavorings

  • Return to low heat. Stir in miso paste (dissolve it in a bit of hot broth first if needed) and coconut milk Let it warm through, don’t boil once miso is added to preserve its probiotics.

Taste and adjust

  • Add salt and pepper, adjust as needed.

Serve

  • Ladle into bowls and garnish with the green onion tops and an extra swirl of coconut milk or sesame oil if you like.
Author: Annie Kimmelman