Quick and easy Somen Noodles with Scallion Sauce. This simple noodle dish is mega flavourful but comes together in just 10 minutes making it perfect for busy weeknights! (Vegan & Gluten free option).

somen noodles with scallions in a white bowl half shot

With the seasons changing, the weather has been all over the place from warm and humid to cool and chilly. These noodles are perfect for the transitional season period because they can be served either hot or cold! Plus, they take just 10 minutes to make but still so flavourful and satisfying.

Ingredients (+Substitutions)

I came up with this recipe using what I had in my kitchen so they’re all basic pantry staples!

  • Japanese leek or scallions: I prefer to use Japanese leeks when I can but if unavailable, scallions or green onions work just as well.
  • Ginger: Flavour pairs deliciously with the scallions.
  • Kombu mentsuyu: Store bought or homemade vegan tsuyu
  • Vegetarian oyster sauce: Can be omitted if you don’t have any on hand but please note the flavour will be different!
  • Rice vinegar: For a bit of tang
  • Sesame oil: For flavour
  • Sesame seeds: use roasted sesame seeds for texture and flavour
  • Yuba: I used to have this with shredded chicken but found that dried yuba to be the perfect replacement. I used dried yuba but you can also use fresh or frozen! Depending on the type and brand, you may need to soak prior to cooking with the somen noodles.
  • Somen Noodles: or any noodles of choice.

How to Make Scallion Noodles

Did I mention how easy this noodle recipe is to make? Here’s a run down in 3 easy steps:

  1. Finely chop the scallions and then mix the remaining sauce ingredients together. Taste and adjust to your liking.
  2. Cook noodles of choice with the yuba (to save time!), drain and rinse VERY well. Especially if using somen noodles, be sure to rinse with cold water and gently rub between your palms to remove excess starch for the best texture.
  3. Toss the sauce, noodles and yuba together. Garnish with some reserved scallions (the green part!), chili and chili oil for a spicy kick… and enjoy!
scallion noodles in a white bowl with chopsticks picking up the noodles over head shot

More quick and easy noodles to try


scallion sauce somen noodles with pinterest text

If you recreate this Scallion Sauce Noodles recipe let me know how you liked it by leaving a comment and rating below or by tagging me on Instagram @Okonomikitchen, I love seeing all of your tasty recreations!
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Scallion Sauce Noodles

5 Stars 4 Stars 3 Stars 2 Stars 1 Star

5 from 4 reviews

  • Author: Lisa Kitahara
  • Total Time: 10 minutes
  • Yield: 1 serving 1x


Quick and easy Somen Noodles with Scallion Sauce. This simple noodle dish is mega flavourful but comes together in just 10 minutes making it perfect for busy weeknights! (Vegan & Gluten free option).


Units Scale

Scallion Sauce Noodles

  • 1 Japanese leek or 2 scallions (40g)
  • 1 tsp ginger, minced (5g)
  • 3 tbsp kombu mentsuyu (45ml)
  • 1/2 tbsp vegetarian oyster sauce (7ml)
  • 1 tsp sesame seeds (5g)
  • 1/2 tbsp rice vinegar (7ml)
  • 1 tsp sesame oil (5ml)
  • 1 bundle somen noodles (100g)
  • 1 oz dried yuba (28g)


  • scallions
  • chili peppers
  • chili oil


  1. Make the sauce: Finely chop the scallions and then reserve a small handful of the green part for topping later. Add the remaining to a bowl. Mix with the minced ginger, mentsuyu, vegetarian oyster sauce, rice vinegar, sesame oil and sesame seeds. Set aside.
  2. Make the noodles: Cook somen noodles with the yuba according to directions on the package. Depending on the type or brand of yuba you use, you may need to soak them prior for 5-10 minutes.
  3. Toss together: Drain and rinse with cold water very well by gently washing the noodles between the palms of your hands. Strain the water well and then add it back to the pot (or bowl). Add the sauce and toss together. Serve in a shallow bowl. Garnish with remaining scallions, chili pepper and chili oil, and enjoy!


  • Nutritional Information Disclaimer: Nutrition information is a rough estimate calculated on an online tool (Cronometer). 
  • Prep Time: 5 minutes
  • Cook Time: 5 minutes
  • Category: entree
  • Method: stove top
  • Cuisine: vegan, japanese


  • Serving Size: 1 serving
  • Calories: 630
  • Sugar: 11.1
  • Sodium: 4249mg
  • Fat: 14.5
  • Saturated Fat: 5.8
  • Unsaturated Fat: 1.1
  • Trans Fat: 0
  • Carbohydrates: 95.2
  • Fiber: 5.7
  • Protein: 28.4
  • Cholesterol: 0

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About Lisa

I'm Lisa, a home cook, recipe developer and founder of Okonomi Kitchen. Here, you'll find a mix of classic and modernized Japanese recipes, and creative, plant-forward meal inspiration using seasonal ingredients. I hope to share more about Japanese cuisine and culture through food and recipes.

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  1. Love, love, love this super simple and quick somen recipe. It’s been literally my go to meal now if I need a quick lunch or dinner fix. Super easy if you have spring onions handy at home. The addition of the yuba gives it another texture layer which I love as well.

    Thanks for sharing this recipe Lisa!

  2. Amazing recipe!!! So delicious and easy, even missing a couple ingredients (such as chili and yuba). I look forward to making it again, thank you Lisa <3

  3. I thought I would miss sushi, but this recipe was soo easy! Even my non vegan coworkers have sampled it and said it tastes exactly like tuna!