Why You’ll Love This Recipe
I love this vegetable udon soup because it gives me plenty of flavor from simple ingredients. The combination of soy sauce, sesame oil, garlic, and fresh ginger creates a savory broth that tastes rich without requiring hours of simmering.
I also like how flexible this recipe is. I can use whatever vegetables I have available, add tofu when I want extra protein, or adjust the seasonings to make the broth lighter, richer, or spicier.
Another reason I make this soup often is its speed. Since udon noodles and vegetables cook quickly, I can prepare the entire meal in one pot in around 30 minutes.
Ingredients
(Tip: You’ll find the full list of ingredients and measurements in the recipe card below.)
- Udon noodles
- Vegetable broth
- Mushrooms, sliced
- Carrot, thinly sliced
- Bok choy, chopped
- Green onions, sliced
- Garlic, minced
- Fresh ginger, grated
- Soy sauce
- Sesame oil
- Rice vinegar
- Neutral cooking oil
- Salt and black pepper, as needed
- Sesame seeds, optional for serving
Directions
I start by heating a little cooking oil in a large pot over medium heat. I add the mushrooms and carrots and cook them for about 3 to 4 minutes, until they begin to soften.
Next, I add the minced garlic and grated ginger. I stir everything for about 30 seconds, just until the garlic and ginger become fragrant.
I pour in the vegetable broth, then add the soy sauce and rice vinegar. I bring the broth to a gentle boil before reducing the heat and letting it simmer for about 5 minutes.
I add the bok choy and udon noodles to the pot. Depending on the type of udon I use, I cook the noodles according to the package directions, usually for just a few minutes. I gently separate the noodles as they warm in the broth.
Once the vegetables are tender and the noodles are heated through, I stir in the sesame oil. I taste the broth and adjust it with additional soy sauce, salt, or black pepper if needed.
I divide the soup between bowls and finish each serving with sliced green onions and sesame seeds.
Servings and Timing
I usually make this recipe for about 4 servings.
- Prep time: 10 minutes
- Cook time: 20 minutes
- Total time: 30 minutes
- Servings: 4
Variations
For a tofu udon soup, I add cubed firm or extra-firm tofu during the final few minutes of cooking. I can also pan-fry the tofu separately and place it on top of each bowl for a crispier texture.
When I want more vegetables, I add broccoli, spinach, snow peas, cabbage, zucchini, bell peppers, or edamame. I simply adjust when I add each vegetable so everything stays tender rather than overcooked.
For a spicy version, I stir chili oil, sriracha, sambal, or red pepper flakes into the broth. I usually start with a small amount and add more after tasting.
When I want a richer broth, I stir in a spoonful of white or yellow miso paste near the end. I mix the miso with a little warm broth first and avoid vigorously boiling it after adding it.
I can also replace the udon with soba, ramen, or another noodle I have available, although I adjust the cooking time according to the noodle package.
Storage/Reheating
I store leftover vegetable udon soup in an airtight container in the refrigerator for up to 3 to 4 days. When possible, I keep the noodles separate from the broth because udon continues absorbing liquid while it sits and can become very soft.
To reheat the soup, I warm the broth and vegetables in a saucepan over medium heat until hot. I add the noodles near the end and heat them just long enough to warm through.
If I use a microwave, I place the soup in a microwave-safe bowl and heat it in short intervals, stirring between each interval until evenly hot.
I generally prefer making fresh noodles when freezing the soup. I freeze the cooled broth and vegetables without the udon, then cook fresh noodles when I am ready to serve it.
FAQs
Can I use frozen udon noodles?
Yes. I often use frozen udon because the noodles have a pleasantly thick and chewy texture. I cook or warm them according to the package instructions and avoid overcooking them in the broth.
What vegetables can I add to udon noodle soup?
I use mushrooms, carrots, and bok choy as a simple combination, but I can also add spinach, broccoli, cabbage, snow peas, zucchini, bell peppers, corn, or edamame. I choose vegetables with different colors and textures to make the soup more satisfying.
How can I add more protein to vegetable udon soup?
I usually add tofu or edamame when I want to keep the soup vegetarian. Crispy pan-fried tofu works especially well because it adds a different texture to the soft noodles and vegetables.
How do I keep udon noodles from becoming mushy?
I avoid cooking the noodles longer than necessary. If I know I will have leftovers, I cook the udon separately and add noodles to individual bowls instead of storing them in the broth.
Can I make vegetable udon noodle soup ahead of time?
Yes. I prepare the broth and vegetables ahead of time and refrigerate them in an airtight container. When I am ready to eat, I reheat the broth and cook or warm the udon separately before combining everything. This helps me keep the noodles chewy.
Conclusion
This Easy Vegetable Udon Noodle Soup is a simple meal I can turn to whenever I want a cozy bowl of noodles and vegetables without a complicated cooking process. I love the combination of chewy udon, tender vegetables, and savory ginger-soy broth, and I can easily change the vegetables or toppings depending on what I have in my kitchen.
PrintEasy Vegetable Udon Noodle Soup Recipe
A warm and comforting vegetable udon noodle soup with chewy noodles, tender vegetables, and a savory ginger-soy broth. This easy one-pot meal is ready in about 30 minutes.
- Prep Time: 10 minutes
- Cook Time: 20 minutes
- Total Time: 30 minutes
- Yield: 4 servings
- Category: Main Course
- Method: Stovetop
- Cuisine: Japanese-Inspired
- Diet: Vegetarian
Ingredients
- Udon noodles
- Vegetable broth
- Mushrooms, sliced
- Carrot, thinly sliced
- Bok choy, chopped
- Green onions, sliced
- Garlic, minced
- Fresh ginger, grated
- Soy sauce
- Sesame oil
- Rice vinegar
- Neutral cooking oil
- Salt and black pepper, as needed
- Sesame seeds, optional for serving
Instructions
- Heat a little neutral cooking oil in a large pot over medium heat. Add the mushrooms and carrots and cook for 3 to 4 minutes, until they begin to soften.
- Add the minced garlic and grated ginger and cook for about 30 seconds, stirring until fragrant.
- Pour in the vegetable broth and add the soy sauce and rice vinegar. Bring to a gentle boil, then reduce the heat and simmer for about 5 minutes.
- Add the bok choy and udon noodles. Cook according to the udon package directions, gently separating the noodles as they warm in the broth.
- Once the vegetables are tender and the noodles are heated through, stir in the sesame oil. Taste and adjust with additional soy sauce, salt, or black pepper as needed.
- Divide the soup among bowls and garnish with sliced green onions and optional sesame seeds. Serve hot.
Notes
- Add cubed firm or extra-firm tofu during the final few minutes of cooking for extra protein, or top the soup with separately pan-fried tofu.
- Other suitable vegetables include broccoli, spinach, snow peas, cabbage, zucchini, bell peppers, corn, and edamame.
- For a spicy soup, add chili oil, sriracha, sambal, or red pepper flakes to taste.
- For a richer broth, mix white or yellow miso paste with a little warm broth and stir it into the soup near the end. Avoid vigorously boiling the soup after adding miso.
- Soba, ramen, or other noodles can replace the udon; adjust the cooking time according to the package directions.
- Store leftovers in an airtight container in the refrigerator for up to 3 to 4 days. For the best texture, store the noodles separately from the broth.
- For freezing, freeze the cooled broth and vegetables without the udon and prepare fresh noodles when serving.
Nutrition
- Serving Size: 1 bowl
- Calories: 330 kcal
- Sugar: 6 g
- Sodium: 1050 mg
- Fat: 8 g
- Saturated Fat: 1 g
- Unsaturated Fat: 6 g
- Trans Fat: 0 g
- Carbohydrates: 54 g
- Fiber: 5 g
- Protein: 10 g
- Cholesterol: 0 mg
