Vegetarian udon noodle soup—a Japanese vegan recipe (2024)

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By

Jolinda Hackett

Jolinda Hackett

Jolinda Hackett has written five books about plant-based cooking and has developed hundreds of vegan and vegetarian recipes.

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Updated on 08/31/22

Tested by

Laurel Randolph

Vegetarian udon noodle soup—a Japanese vegan recipe (1)

Tested byLaurel Randolph

A fervid lover of the culinary arts and all things Instant Pot, Laurel has been writing about food for 10 years. One of her cookbooks was the #2 cookbook of 2017.

Learn about The Spruce Eats'Editorial Process

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Prep: 10 mins

Cook: 20 mins

Total: 30 mins

Servings: 3to 4 servings

69 ratings

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A staple of Japanese cuisine, udon noodles have won the hearts and palates of food enthusiasts around the world. Thick, silky, and filling, these wheat noodles are commonly found in soups, with or without animal-based proteins, but always surrounded by thinly sliced vegetables and flavorful ingredients like soy sauce, rice vinegar, and ginger.

This particular vegan version of this Japanese-inspired soup is made with Chinese broccoli, scallions, fresh cilantro, and peanuts. It's similar to a traditional recipe, so you'll find it warming and filling but not heavy.

Dried udon noodles can be found in the international section of most supermarkets, but sometimes Asian markets and supermarkets sell the frozen version. What you really want is the fresh version, which you might be able to acquire from a local Japanese restaurant, as they're difficult to find elsewhere; if you can't find dried or frozen, use soba noodles instead.

Easy to make, our udon soup is a great introduction to classic Japanese flavors and a tempting light lunch or dinner.

Vegetarian udon noodle soup—a Japanese vegan recipe (2)

"This quick soup pairs a flavorful broth with chewy udon noodles for a satisfying dish. Feel free to play around with the ingredients to get the flavors just how you like them—I liked adding a splash of mirin. Tastes great topped with steamed or fried tofu." —Laurel Randolph

Vegetarian udon noodle soup—a Japanese vegan recipe (3)

A Note From Our Recipe Tester

Ingredients

For the Broth:

  • 4 cups low-sodium vegetable broth

  • 1 (1-inch) piece ginger, sliced

  • 2 tablespoons soy sauce

  • 1 tablespoon rice vinegar

  • 1 tablespoon vegetarian oyster or mushroom sauce

  • 1/2 teaspoon chili paste

  • 1 pinch granulated sugar

  • Kosher salt, to taste

  • Freshly ground black pepper, to taste

For the Chinese Broccoli:

  • 1 tablespoon peanut oil

  • 1/2 tablespoon minced ginger

  • 2 cloves minced garlic

  • 1 teaspoon sesame oil

  • 1 pound Chinese broccoli, coarsely chopped

For Assembling:

  • 1 pound fresh or frozen udon noodles, cooked according to package directions (or 14 ounces dried)

  • 2 medium green onions, thinly sliced

  • 1/4 cup coarsely chopped cilantro

  • 1/4 cup roasted, salted peanuts

Steps to Make It

Make the Broth

  1. Gather the broth ingredients.

    Vegetarian udon noodle soup—a Japanese vegan recipe (4)

  2. In a medium saucepan, combine the vegetable broth with the pieces of ginger, soy sauce, rice vinegar, oyster or mushroom sauce, chili paste, and sugar. Stir to combine and bring to a boil. Cover the pot and reduce to a simmer.

    Vegetarian udon noodle soup—a Japanese vegan recipe (5)

  3. Allow broth to simmer for at least 10 minutes. Remove the pieces of ginger from broth and discard. Taste and season lightly with salt and pepper if needed.

    Vegetarian udon noodle soup—a Japanese vegan recipe (6)

Make the Chinese Broccoli

  1. Gather the Chinese broccoli ingredients.

    Vegetarian udon noodle soup—a Japanese vegan recipe (7)

  2. In a separate large skillet, heat the peanut oil and add the minced ginger, garlic, and sesame oil over medium heat. Cook 1 to 2 minutes or until fragrant.

    Vegetarian udon noodle soup—a Japanese vegan recipe (8)

  3. Add the Chinese broccoli. Sauté for a few minutes, or until the broccoli is just tender and a lively green color. Remove from the heat and set aside.

    Vegetarian udon noodle soup—a Japanese vegan recipe (9)

Assemble the Noodle Soup

  1. Gather the ingredients for assembly.

    Vegetarian udon noodle soup—a Japanese vegan recipe (10)

  2. Prepare individual bowls by placing a serving of noodles in each, topping with the prepared Chinese broccoli, a generous amount of warm broth, some sliced green onions, chopped cilantro, and roasted peanuts. Serve.

    Vegetarian udon noodle soup—a Japanese vegan recipe (11)

Recipe Variations

  • Feel free to add more soy sauce, rice vinegar, oyster sauce, chili paste, and sugar to taste. You want a flavorful broth since it will infuse the other ingredients with its flavor.
  • You can add ingredients like mushrooms (dried or fresh) or mirin for extra flavor.
  • Our quick recipe is vegan and uses vegetable broth as a base, but if you'd like a more classic version, you can replace it with dashi, which has fish ingredients in it.

Kitsune Noodles

Kitsune noodles are a classic preparation of udon noodles. Topped with fried tofu, the soup is really delicious and filling thanks to the added protein in the tofu. For this version, simply follow the recipe as is but top each bowl of soup with a slice of fried tofu.

  • Simply press and remove any excess liquid from a package of extra-firm tofu, slice it into 2 pieces by cutting it diagonally and then slice each triangle in half by its thickness. Pat the tofu triangles dry with paper towels, drench in cornstarch, and deep fry in 350 F oil until golden brown on both sides. Sprinkle with sea salt.
  • Top the soup with a triangle of tofu. For a more elaborate version of this dish, you can fry the tofu twice for an extra special texture.

How to Store and Freeze

  • The best way to store noodles, whether in the refrigerator or in the freezer, is to separate the broth and veggies from the noodles into separate sealed containers; this is often the way you will receive Asian noodle-based soups if you purchase them for takeout. Store in the refrigerator for 3 to 5 days.
  • If you want to freeze the soup, just freeze the broth and veggies. Noodles like udon don't reheat well after they've been frozen. Just reheat in a saucepan over medium-low heat until it's hot all the way through.

Is Udon the Same as Ramen?

Udon and ramen are both noodles used in soup-based Japanese dishes loaded with noodles, veggies, and broths with similar ingredients. However, udon noodles are thicker, whiter, and typically vegan; ramen noodles are thinner, often made with eggs (so they're more yellow in color), and curlier in shape. Both of them, however, contain wheat flour; only soba is usually gluten-free, made from buckwheat (but read the package to be sure if that's a concern).

Vegan Pho Tofu Noodle Soup

  • Lunch
  • Soups
  • Asian Food
Nutrition Facts (per serving)
251Calories
10g Fat
33g Carbs
10g Protein

×

Nutrition Facts
Servings: 3to 4
Amount per serving
Calories251
% Daily Value*
Total Fat 10g13%
Saturated Fat 2g8%
Cholesterol 0mg0%
Sodium 1358mg59%
Total Carbohydrate 33g12%
Dietary Fiber 6g20%
Total Sugars 5g
Protein 10g
Vitamin C 77mg385%
Calcium 79mg6%
Iron 2mg12%
Potassium 574mg12%
*The % Daily Value (DV) tells you how much a nutrient in a food serving contributes to a daily diet. 2,000 calories a day is used for general nutrition advice.

(Nutrition information is calculated using an ingredient database and should be considered an estimate.)

Recipe Tags:

  • Broccoli
  • dinner
  • japanese
  • fall

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Vegetarian udon noodle soup—a Japanese vegan recipe (2024)

FAQs

Is Japanese udon vegan? ›

Generally yes, udon is vegan-friendly as it's simply made from wheat flour and water. They're one of the few types of noodles that don't commonly contain egg. However, it's always worth double-checking an ingredients list or asking at a restaurant to make sure.

Is udon a vegetarian or non vegetarian food? ›

At its core, udon is made from a simple mixture of wheat flour, water, and salt, which at first glance, seems perfect for vegetarians and vegans. However, the traditional udon broth often leans on seafood, like dried sardines and bonito flakes, for its rich flavor.

What is vegetable udon made of? ›

The base is made up of fresh garlic and ginger, miso paste and soy sauce. To that we'll add vegetable broth (you can add a splash more soy sauce to taste if you want your soup to be a little saltier). Once the broth comes to a simmer, it's time to add the udon noodles and bok choy.

Is Japanese udon soup healthy? ›

Aside from the flavourful textures and all-around taste that's tied to udon soup, the soup as a whole is greatly beneficial for you to eat. After all, it's filled with essential vitamins and minerals from its broth, noodles, and veggies that are in it to consume. Udon soup is such a versatile cuisine.

Are Japanese mostly vegan? ›

Japanese cuisine is known for its heavy use of meat and fish, and even stocks and sauces usually have some ingredients containing meat. Vegetarianism and veganism are not as popular in Japan as it is in the West, so you'll find there's often some confusion as to what you can and can't eat.

Is udon broth vegan? ›

However, beyond that, it is not really an at-all authentic Japanese recipe. Generally, a true Japanese udon noodle soup recipe is usually made with dashi, a traditional Japanese broth. This broth is typically made kombu (seaweed) and bonito flakes (dried tuna flakes — so not vegan).

Is Japanese ramen broth vegetarian? ›

Ramen broth traditionally relies on non-vegan dashi stock for its savory flavor. Made from bonito (tuna), kelp, mushrooms, and sardines, dashi serves as the base for other Japanese broths, including non-vegan miso. Other common ramen animal-based broths contain shrimp, beef, and chicken.

Can vegetarians eat mochi? ›

Dango and mochi are generally vegetarian-friendly, as their main ingredients are typically rice flour, water, and sometimes sugar.

What is udon broth made of? ›

To make udon soup broth, make dashi (Japanese soup stock) and season it with soy sauce, mirin, (sometimes sake), sugar, and salt. It's very simple and easy! You can make dashi from scratch with kombu and katsuobushi, which takes about 30 minutes or less.

What is the pink stuff in udon? ›

What is the pink thing in Udon? The fish cake called kamaboko. Made from mixture of finely pounded fish (mostly pollock or cod), egg white, potato starch and seasonings, pressed into a log and subsequently steamed, it's a common topping for many noodle dishes.

Why is udon healthier than ramen? ›

What's the healthiest? While both dishes brim with flavor, Udon could be considered the healthier of the two noodle type dishes as it tends to have cleaner, simpler toppings and has lower sodium as it doesn't use kansui (the alkaline solution that gives ramen its unique flavor).

Is vegetable udon healthy? ›

Tip. Udon noodles are typically made from wheat flour, water and salt, making them high in carbs and low in fat, vitamins and minerals. Make the healthiest udon dishes by choosing whole-wheat udon noodles and adding them into creations with vegetables and lean proteins.

Can I eat udon everyday? ›

Instant udon noodles are often made with preservatives, artificial flavors, and other additives that can be unhealthy if consumed in large amounts. They are also typically high in sodium, which can increase your risk of high blood pressure and other health problems.

Is udon good for your stomach? ›

For example, two ounces of dry uncooked udon noodles made from a whole grain flour can contain approximately five grams of fiber, which fulfills 20 percent of daily fiber requirements for the average person. A high-fiber diet helps prevent constipation, which also promotes greater intestinal health.

Why are udon noodles so high in sodium? ›

The sodium (salt) is added to the dough before the noodles are formed, making it difficult to remove most of it during cooking. Instead, there are many brands of Udon Noodles - some will have less sodium content, or even no sodium.

What are Japanese udon noodles made from? ›

Udon noodles are made out of wheat flour; they are thick and white in color. Best as fresh, they are soft and chewy. Due to their neutral flavor, they are able to absorb strong-flavored ingredients and dishes. Dried udon is also good, however, the texture is more dense.

Do udon noodles have dairy in them? ›

Udon noodles themselves (not the dish) are just flour, water, and salt. That's good news because they are quite yummy and there are tons of ways to prepare them. So the actual noodle is vegan.

Are the Japanese pan noodles vegan? ›

Japanese Pan Noodles: Containing caramelized udon noodles in a sweet soy sauce, seasoned tofu, broccoli, mushrooms, carrots, black sesame seeds, and cilantro, this Noodles & Company staple is vegan as-is!

What is in Japanese udon noodles? ›

Udon (うどん or 饂飩) is a thick noodle made from wheat flour, used in Japanese cuisine. There is a variety of ways it is prepared and served. Its simplest form is in a soup as kake udon with a mild broth called kakejiru made from dashi, soy sauce, and mirin.

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