Miso Udon Noodle Soup with Teriyaki Mushrooms

Miso Udon Noodle Soup with Teriyaki Mushrooms tastes savory, slightly sweet, and deeply comforting, like a cozy hoodie in soup form. It works perfectly for busy weeknights, lazy Sundays, or anyone who wants a big bowl of flavor in about 35 minutes. I tested this on a rainy Tuesday in my tiny kitchen and ended up eating it straight from the pot like a very happy raccoon.

Why Miso Udon Noodle Soup with Teriyaki Mushrooms Is Worth It

This soup hits every comfort note: chewy udon noodles, umami-rich miso broth, and glossy teriyaki mushrooms that taste almost meaty. You get a restaurant-style bowl with simple pantry ingredients and one main pot.

The recipe stays flexible, so you can keep it vegan, add protein, or raid your fridge for veggies. You also cook everything quickly, which keeps the miso bright and the mushrooms caramelized instead of soggy.

“This Miso Udon Noodle Soup with Teriyaki Mushrooms tastes like a cozy Japanese noodle bar at home, without the takeout bill. ★★★★★”

Ingredients You Need

Broth base

• Low sodium vegetable broth or chicken broth, 4 cups
  • Use low sodium so you control the salt, since miso and soy sauce already bring a lot of flavor.
• Water, 1 to 2 cups
  • Adjust to thin or thicken the soup to your liking.
• White or yellow miso paste, 3 to 4 tablespoons
  • White miso tastes mild and slightly sweet. Red miso tastes stronger and saltier, so use less.
• Soy sauce or tamari, 1 to 2 tablespoons
  • Use tamari for a gluten free version.
• Mirin, 1 tablespoon
  • If you do not have mirin, use 1 tablespoon rice vinegar plus 1 teaspoon sugar.
• Fresh ginger, 1 to 2 teaspoons, finely grated
• Garlic, 2 to 3 cloves, minced
• Sesame oil, 1 teaspoon

Noodles and vegetables

• Fresh or frozen udon noodles, 2 portions (about 14 to 16 ounces total)
  • Frozen udon often has the best chewy texture. Shelf stable works fine in a pinch.
• Baby bok choy or regular bok choy, 2 to 3 heads, chopped
• Carrot, 1 medium, cut into matchsticks or thin slices
• Green onions, 3 to 4, sliced
• Spinach or napa cabbage, 1 to 2 cups, loosely packed (optional)
• Fresh or frozen shelled edamame, 1 cup (optional protein boost)

Teriyaki mushrooms

• Cremini or shiitake mushrooms, 8 to 10 ounces, sliced
  • Shiitake bring deeper flavor, cremini cost less and still taste great.
• Neutral oil, 1 to 2 tablespoons (avocado, canola, or light olive oil)
• Soy sauce or tamari, 2 tablespoons
• Mirin, 1 tablespoon
• Brown sugar or maple syrup, 1 tablespoon
• Rice vinegar, 1 teaspoon
• Cornstarch, 1 teaspoon mixed with 1 tablespoon water

Toppings

• Toasted sesame seeds
• Extra sliced green onions
• Chili oil, chili crisp, or shichimi togarashi
• Lime wedges (optional, but a squeeze brightens the broth)

Pantry shortcuts and brand notes

• Use instant dashi granules instead of broth for a more traditional Japanese flavor.
• Use pre-minced garlic and ginger from a jar if you feel tired or short on time.
• Shelf stable udon works fine, but frozen udon gives the best chewy bite.
• Any good supermarket miso works, but I like white miso for this soup because it keeps the broth light and mellow.

Equipment list

• Large pot or Dutch oven
• Medium skillet for teriyaki mushrooms
• Small bowl and whisk for miso slurry and cornstarch slurry
• Tongs or chopsticks for noodles
• Ladle for serving

Quick Tips & substitutions

• Use tamari and gluten free miso to keep the Miso Udon Noodle Soup with Teriyaki Mushrooms gluten free.
• Cook udon separately if you plan leftovers, so the noodles do not soak up all the broth.
• Add miso at the end off the heat so you keep its flavor and nutrients.
• Brown the mushrooms well before you add the teriyaki sauce so they taste rich and not watery.
• Swap bok choy with spinach, napa cabbage, or even thinly sliced kale.
• Use firm tofu cubes, rotisserie chicken, or shrimp if you want extra protein.
• Thin the broth with more water if it tastes too salty, or add a bit more miso if it tastes flat.
• Use chili oil or chili crisp at the table so spice lovers and mild eaters both stay happy.

How to Make Miso Udon Noodle Soup with Teriyaki Mushrooms

Step 1: Prep the ingredients

Slice the mushrooms, chop the bok choy, and cut the carrot into thin pieces. Slice the green onions and set the dark green tops aside for garnish. Grate the ginger and mince the garlic.

If you use frozen udon, run the blocks under warm water to loosen them. If you use shelf stable udon, open the packages so you can add them quickly later.

Step 2: Cook the teriyaki mushrooms

Heat a skillet over medium high heat and add the neutral oil. Add the sliced mushrooms in a single layer and let them sit for 2 to 3 minutes so they brown. Stir and cook until they shrink and turn golden around the edges.

Mix soy sauce, mirin, brown sugar, and rice vinegar in a small bowl. Pour the mixture over the mushrooms and stir while it bubbles. Add the cornstarch slurry and cook 1 to 2 minutes until the sauce turns glossy and clings to the mushrooms, then turn off the heat.

Step 3: Build the miso broth

Set a large pot over medium heat and add a small splash of oil or a bit of sesame oil. Add garlic, ginger, and the white and light green parts of the green onions. Stir and cook 30 to 60 seconds until fragrant, but do not let the garlic burn.

Pour in the broth and 1 cup of water, then add soy sauce and mirin. Bring the mixture to a gentle simmer. Taste and adjust with more soy sauce or water as needed.

Step 4: Cook the vegetables

Add the carrots and simmer them for 3 to 4 minutes until they start to soften. Add bok choy stems and any tougher veggies first so they cook through. Add bok choy leaves, spinach, or napa cabbage and cook 1 to 2 minutes until they wilt.

If you use edamame, add it now and cook until heated through. Keep the soup at a gentle simmer, not a rolling boil, so the veggies stay bright and tender.

Step 5: Cook the udon noodles

If you use frozen or fresh udon that needs cooking, bring a separate pot of water to a boil. Add the noodles and cook according to package directions, usually 2 to 3 minutes. Stir gently to separate the strands.

Drain the noodles and rinse briefly with warm water to remove extra starch. If you use shelf stable udon that cooks directly in broth, add it to the main pot and simmer until it loosens and turns tender.

Step 6: Add the miso

Ladle about 1 cup of hot broth from the pot into a small bowl. Add the miso paste and whisk until it dissolves completely and forms a smooth mixture. Turn off the heat under the soup pot.

Pour the miso mixture back into the pot and stir gently. Taste the broth and adjust with more miso or water until it tastes balanced and savory.

Step 7: Assemble the bowls

Divide the cooked udon noodles between serving bowls. Ladle the hot miso broth and vegetables over the noodles. Top each bowl with a generous spoonful of teriyaki mushrooms.

Sprinkle with green onion tops and toasted sesame seeds. Add chili oil or chili crisp if you like heat, and squeeze a little lime over the top if you want extra brightness.

Recipe Variations

• Gluten free: Use gluten free udon or thick rice noodles, tamari instead of soy sauce, and gluten free miso.
• Vegan: Use vegetable broth, skip any animal protein add ins, and keep the teriyaki mushrooms as the star.
• High protein: Add cubed tofu, tempeh, shredded chicken, or poached eggs.
• Low carb: Use shirataki noodles or spiralized zucchini instead of udon, and load up on extra bok choy and mushrooms.
• Extra veggies: Add sliced bell peppers, snow peas, baby corn, or thinly sliced cabbage.
• Spicy version: Simmer a spoonful of chili paste in the broth and finish with chili oil on top.

Ways to Serve Miso Udon Noodle Soup with Teriyaki Mushrooms

• Serve with a simple cucumber salad with rice vinegar and sesame seeds.
• Add a side of steamed edamame with sea salt.
• Pair with a small bowl of rice for extra bulk if you feel extra hungry.
• Offer kimchi or pickled vegetables on the side for crunch and tang.
• Pack in a thermos for a warm desk lunch that makes coworkers jealous.

Storage Success

Store leftover Miso Udon Noodle Soup with Teriyaki Mushrooms in airtight containers in the fridge for up to 3 days. Keep the noodles and broth in separate containers if possible so the noodles stay chewy and do not soak up all the liquid. Reheat the broth gently on the stove over low to medium heat and add the noodles at the end so they warm through. Warm the teriyaki mushrooms in a skillet or in the microwave and add them to the bowl right before serving.