Whip up this flavorful Spicy Udon Stir Fry in just 15 minutes!
This versatile recipe is endlessly customizable—use any veggies or proteins you like for a dish that’s as unique as you are.

It’s proof that a delicious, satisfying meal doesn’t have to take hours to prepare.
Why You’ll Love This Udon Stir Fry
With a stash of udon noodles in your pantry or freezer, you’re only moments away from an easy, satisfying dinner. This base recipe is highly adaptable—perfect for clearing out the fridge or catering to personal preferences.
Add cooked chicken, shrimp, or pork for a heartier dish, or toss in vegetables like mushrooms, bell peppers, or cabbage to make it your own. This recipe is ready to serve in just 15 minutes, making it ideal for busy weeknights.
Ingredients
For the Stir Fry:
- 1 tbsp vegetable oil (or other neutral oil)
- ½ medium onion, sliced or diced
- 1 medium carrot, spiralized or grated
- 1 cup green onion, sliced diagonally (green tops only)
- 3 cups baby spinach
- 14 oz (400g) soft vacuum-packed udon noodles
For the Sauce:
- 1-2 tsp Sambal Oelek (or Sriracha/Chili Garlic Sauce, to taste)
- ¼ cup soy sauce
- 2 tsp rice wine vinegar
- 1 tsp sesame oil
- 2 tbsp brown sugar
- 2 cloves garlic, minced
- 1 tbsp fresh ginger, minced
For Garnish:
- Sesame seeds
- Additional sliced green onion
- ¼ cup chopped parsley or cilantro

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Instructions
1. Prepare Ingredients

Chop vegetables and mix the sauce ingredients in a small bowl. If desired, soak noodles in hot water to separate.
2. Cook Vegetables

Heat oil in a hot wok. Add carrots and stir-fry for a minute, then toss in onions and cook until softened. Add green onions and cook briefly.
3. Add Noodles
Drain soaked noodles (if applicable) and add to the wok. Stir-fry for a minute to remove any water.

4. Combine
Pour in the sauce and toss until everything is coated. Add spinach and stir until wilted.

5. Serve

Transfer to bowls, garnish with sesame seeds, green onion, and parsley or cilantro. Enjoy hot!
Recipe Notes
- Frozen udon noodles are my top pick for their great texture and flavor. Simply soak them in hot water for a few minutes, drain, and they’re ready to use.
- If using dried udon, boil them according to the package instructions before adding them to the stir fry.
- This recipe serves 2 as a main dish or 4 as a side dish. To serve more, simply double the ingredients.

The BEST and Easy Spicy Udon Stir Fry
Ingredients
Prepare Ingredients
- 1 tbsp vegetable oil (or other neutral oil)
- ½ medium onion sliced or diced
- 1 medium carrot spiralized or grated
- 1 cup green onion, sliced diagonally (green tops only)
- 3 cups baby spinach
- 14 oz (400g) soft vacuum-packed udon noodles
For the Sauce
- 1-2 tsp Sambal Oelek (or Sriracha/Chili Garlic Sauce, to taste)
- ¼ cup soy sauce
- 2 tsp rice wine vinegar
- 1 tsp sesame oil
- 2 tbsp brown sugar
- 2 cloves garlic minced
- 1 tbsp fresh ginger minced
For Garnish
- Sesame seeds
- Additional sliced green onion
- ¼ cup chopped parsley or cilantro
Instructions
Prepare Ingredients
- Chop vegetables and mix the sauce ingredients in a small bowl. If desired, soak noodles in hot water to separate.
Cook Vegetables
- Heat oil in a hot wok.Add carrots and stir-fry for a minute, then toss in onions and cook until softened.Add green onions and cook briefly.
Add Noodles
- Drain soaked noodles (if applicable) and add to the wok.Stir-fry for a minute to remove any water.
Combine
- Pour in the sauce and toss until everything is coated.Add spinach and stir until wilted.
Serve
- Transfer to bowls, garnish with sesame seeds, green onion, and parsley or cilantro. Enjoy hot!
Notes
- Frozen udon noodles are my top pick for their great texture and flavor. Simply soak them in hot water for a few minutes, drain, and they’re ready to use.
- If using dried udon, boil them according to the package instructions before adding them to the stir fry.
- This recipe serves 2 as a main dish or 4 as a side dish. To serve more, simply double the ingredients.
Just tried making this udon stir fry, and let me tell ya, it was delish! Had a bit of trouble finding some ingredients but it was so worth it. Thanks, Alice Williams, for such a clear guide. Gonna be my go-to meal for sure.
can i use spaghetti insted of udon noodles? lol don’t have those fancy stuff at home
You can, but it won’t really be udon stir fry then. The texture and taste will be pretty different.
makes sense, guess i’ll try to find udon then, thanks!
Ah yes, another stir fry recipe. Cause we definitely didn’t have enough of those already. But sure, let’s see if this ‘unique’ udon recipe is any different.
This Udon stir fry was a hit with my kids! So easy to make on a busy weeknight. I added some extra veggies for a healthier twist. Thanks for sharing, Alice!
Is it cool to add more chili flakes, or would that mess with the original taste? Love my meals spicy!