Easy Beef Yaki Udon Stir-Fry
This easy beef yaki udon stir-fry is made with tender beef sirloin, thick and chewy udon noodles, crisp vegetables, and a savory homemade sauce. It is a quick, family-friendly meal that comes together easily and is perfect for busy weeknights.
Servings 4 servings
Ingredients
For the Beef Yaki Udon
- 3 packets udon noodles
- ¾ pound beef sirloin thinly sliced
- 2 cups chopped bok choy
- 1 whole red bell pepper thinly sliced
- ½ onion thinly sliced
- 2 scallions cut into 2-inch pieces
- 1 tablespoon avocado oil
For the Yaki Udon Sauce
- 2½ tablespoons dark soy sauce
- 2 tablespoons oyster sauce
- 1 tablespoon mirin
- 2 teaspoons brown sugar
- ½ teaspoon rice wine vinegar
- 2 garlic cloves minced
Instructions
- In a small bowl, whisk together the dark soy sauce, oyster sauce, mirin, brown sugar, rice wine vinegar, and minced garlic. Set aside.
- Prepare the udon noodles according to the package instructions. Drain well and gently separate the noodles.
- Heat the avocado oil in a large skillet or wok over medium-high heat.
- Add the thinly sliced beef sirloin and cook for 2 to 4 minutes, or until browned and mostly cooked through. Transfer the beef to a plate and set aside.
- Add the onion and red bell pepper to the same skillet. Cook for 2 to 3 minutes, stirring frequently.
- Add the bok choy and cook for another 1 to 2 minutes, or until slightly softened but still crisp.
- Add the udon noodles and prepared sauce to the skillet. Toss everything together until the noodles and vegetables are evenly coated.
- Return the beef to the skillet and add the scallions.
- Cook for another 1 to 2 minutes, tossing frequently, until the beef is fully cooked and everything is heated through.
- Serve immediately.