Dinner

Yaki Udon with Mushrooms and Bok Choy Recipe

Name: Yaki Udon with Mushrooms and Bok Choy Recipe
Prep time: 10 min
Cook time: 10 min
Total time: 20 min
Cuisine: Japanese
Ingredients: 4 scallions, chopped; 4 garlic cloves, chopped; 1 cup sliced shiitake mushrooms; 3 cups chopped baby bok choy; 500 grams udon noodles, cooked according to package directions; 2 tbsp vegetarian oyster sauce (or regular if you aren’t vegetarian); 1 tbsp dark soy sauce; 1 tbsp light soy sauce; 1 tbsp mirin (can substitute 1 tbsp dry sherry or 1 tsp rice vinegar); 1 tbsp honey or agave; 1 tsp sriracha; 2 tbsp vegetable oil

ByHugo Harnd November 2, 2025November 2, 2025

Jump to Recipe

Introduction

Yaki Udon is a quick and flavorful Japanese stir-fry featuring thick udon noodles tossed with fresh vegetables and a savory sauce. This dish is perfect for a satisfying weeknight dinner that comes together in minutes.

A white speckled bowl filled with thick, glossy udon noodles coated in a dark soy-based sauce, mixed with pieces of green bok choy and sprinkled with light brown sesame seeds on top. The noodles are twisted and layered, showing their smooth texture and the sauce clinging to them. Two wooden chopsticks rest inside the bowl, lifting some noodles. The bowl is placed on a white marbled surface. Photo taken with an iphone --ar 4:5 --v 7

Ingredients

2 tbsp vegetable oil
4 scallions, chopped
4 garlic cloves, chopped
1 cup sliced shiitake mushrooms
3 cups chopped baby bok choy
500 grams udon noodles, cooked according to package directions
2 tbsp vegetarian oyster sauce (or regular if you aren’t vegetarian)
1 tbsp dark soy sauce
1 tbsp light soy sauce
1 tbsp mirin (can substitute 1 tbsp dry sherry or 1 tsp rice vinegar)
1 tbsp honey or agave
1 tsp sriracha

Instructions

Step 1: Mix the vegetarian oyster sauce, dark soy sauce, light soy sauce, mirin, honey (or agave), and sriracha together in a bowl. Set this stir-fry sauce aside.
Step 2: Heat the vegetable oil in a large skillet over medium-high heat. Add the chopped scallions and garlic, cooking for about 1 minute until fragrant.
Step 3: Add the sliced shiitake mushrooms and chopped baby bok choy to the skillet. Stir and cook for 3 to 4 minutes until the vegetables are tender and the bok choy has wilted.
Step 4: Add the cooked udon noodles and the prepared stir-fry sauce to the skillet. Toss everything together to coat the noodles evenly. Allow it to cook undisturbed for at least 30 seconds to let the noodles brown slightly on the bottom.
Step 5: Remove from heat and serve immediately for best flavor and texture.

Tips & Variations

For extra protein, add tofu, chicken, or shrimp during step 3 and cook until done.
Substitute shiitake mushrooms with cremini or button mushrooms if preferred.
Adjust sriracha to your preferred spice level or omit if you want a milder dish.
Use fresh-made udon noodles if you can find them for a chewier texture.

Storage

Store leftover yaki udon in an airtight container in the refrigerator for up to 2 days. Reheat gently in a skillet or microwave, adding a splash of water or soy sauce to loosen the noodles as needed.

How to Serve

A bowl filled with thick, glossy light brown udon noodles mixed with dark green leafy vegetables and sliced brown mushrooms. The noodles are coated evenly with sauce, giving them a shiny texture, and the dish is sprinkled with both white and black sesame seeds on top. The bowl is white with small black speckles, placed on a white marbled surface. Photo taken with an iphone --ar 4:5 --v 7

Serve this delicious recipe with your favorite sides.

FAQs

Can I use frozen udon noodles?

Yes, frozen udon noodles work well. Just thaw them according to package instructions before stir-frying.

Is vegetarian oyster sauce really vegetarian?

Vegetarian oyster sauce is usually made from mushrooms and does not contain any oyster products, making it a great plant-based alternative.

Hugo Harnd