This miso noodle soup is light, bright, and satisfying all at once. It’s ideal when you want a warm, comforting meal without a long cook time, or when you’re feeling under the weather. Many soups need 30 minutes or more to build depth of flavor; this version delivers delicious results in roughly half that time.
Note: This recipe is not a traditional Japanese miso soup. Classic restaurant-style miso typically uses kombu (dried kelp), wakame seaweed, and silken tofu. The recipe here is a fresh, loosely inspired interpretation that relies on miso and firmer tofu, with added vegetables and noodles for a more substantial bowl.
My version includes spaghetti noodles and an array of colorful vegetables—red bell pepper, snow peas and carrot ribbons—plus extra-firm tofu for body. The broth is brightened with fresh ginger and green onion, then rounded out with toasted sesame oil and tamari or soy sauce for depth and richness.
I first developed this recipe more than a decade ago for Better Homes and Gardens and recently updated it to sharpen the flavors. I increased the amount of miso for a bolder savory note, added tamari for more complex saltiness, and included toasted sesame oil for a nutty finish. I also changed the recommended noodle from soba to spaghetti; soba can become gummy when left in hot broth, while spaghetti holds up better in this soup.
This refined version is a light main course on its own—packed with vegetables and plant-based protein from tofu—or a restorative starter before a larger meal. It’s especially nice in cooler weather when you want something warming but not heavy. The soup is naturally vegan and can be adapted to be gluten-free by choosing appropriate miso, tamari and a sturdy gluten-free noodle.
Miso Noodle Soup Tips
The full recipe appears below. A few tips to streamline the process:
- Prep all ingredients before you begin so each item is ready to add when called for.
- After adding ingredients, wait until the broth returns to a simmer before starting the timer for that step; this ensures even cooking for noodles and vegetables.
Watch How to Make This Soup
A short recipe video demonstrates the steps visually and can be useful if you prefer to follow along. The same sequence and timing shown in the video apply to the recipe below.
Serving Suggestions
This miso noodle soup is a complete, light meal thanks to the vegetables and tofu. If you’d like a side, a simple green salad or a fresh seaweed salad complements the soup nicely. You can also serve small pickles or steamed greens alongside for extra texture and flavor contrast.
More Recipes to Try
If you enjoy this soup, consider other plant-forward recipes like vegetarian sushi bowls, build-your-own buddha bowls, or hearty vegetarian pho. These dishes share bright vegetables, satisfying textures and balanced savory broths.
I’d love to hear how your version turns out. Feel free to note any changes you make—different noodles, extra vegetables, or a touch more heat—and how those adjustments affect the final bowl.
Miso Noodle Soup
This miso noodle soup combines spaghetti, fresh vegetables and extra-firm tofu in a bright, savory broth. It’s a modern, vegetarian take on miso soup that is quick to prepare and comforting to eat. The recipe yields about six bowls.
Ingredients
- 4 cups (32 ounces) vegetable broth
- 2 cups water
- 4 ounces spaghetti noodles, broken in half
- 1 (14-ounce) container extra-firm tofu, drained and cut into bite-sized cubes
- 1 medium red bell pepper, sliced into bite-size strips (about 1 ½ cups)
- ⅓ cup thinly sliced green onions
- 2 teaspoons grated fresh ginger
- ⅛ teaspoon red pepper flakes (optional)
- 1 cup fresh snow peas, halved crosswise
- 1 medium carrot, peeled and ribboned with a vegetable peeler
- ¼ cup white miso
- 1 to 2 tablespoons toasted sesame oil, to taste
- 1 to 2 tablespoons tamari or soy sauce, to taste
- Optional for more heat: additional red pepper flakes and/or sriracha
Instructions
- In a large saucepan or soup pot, bring the vegetable broth and water to a boil over high heat. Add the broken spaghetti and allow the liquid to return to a lively simmer. Cook for 3 minutes, stirring occasionally.
- Stir in the tofu, bell pepper, green onions, ginger and red pepper flakes if using. Return the pot to a simmer and set a timer for 3 minutes.
- Add the halved snow peas and the carrot ribbons. Simmer for 1 more minute, or until the peas are crisp-tender and the noodles are cooked through. Reduce the heat to low.
- Transfer about ½ cup of hot broth to a small bowl and whisk in the miso until smooth. Stir the miso mixture back into the pot. Add 1 tablespoon each of toasted sesame oil and tamari, taste, and adjust seasoning: add another tablespoon of tamari if more saltiness is desired, or up to an additional tablespoon of sesame oil for deeper sesame flavor.
- Remove the soup from the heat. Ladle into bowls and garnish with extra red pepper flakes or a light drizzle of sriracha if you like more heat.
Notes
Recipe updates: This recipe was revised in 2025 to improve balance and texture: increased liquid, switched from soba to spaghetti, reduced ginger, increased miso, and added toasted sesame oil and tamari for depth.
To make it gluten-free: Use verified gluten-free miso and tamari, and choose a sturdy gluten-free noodle such as a corn-quinoa blend. Always check labels carefully.
- Category: Soup
- Method: Stovetop
- Cuisine: Japanese-inspired