Spicy Beef Stir Fry with Udon

Steaming bowls of spicy beef stir fry with udon noodles feature tender meat and colorful vegetables. Save to Pinterest
Steaming bowls of spicy beef stir fry with udon noodles feature tender meat and colorful vegetables. | freshforklab.com

This vibrant Asian fusion dish combines tender sliced beef with crisp vegetables and chewy udon noodles in a bold, spicy sauce. Marinate the beef briefly for tenderness, then stir-fry it quickly over high heat before setting aside. Build flavor by toasting garlic and ginger, then add vegetables for a crisp-tender finish. Toss everything together with the homemade sauce for a cohesive, aromatic dish. Total time is just 35 minutes, making it perfect for weeknight dinners.

The first time I made this spicy beef udon, I splashed hot oil on my favorite shirt and cursed in three languages. By some miracle, the stir-fry survived my kitchen chaos, revealing itself as an explosion of flavors that made me forget about the stained shirt. Even now, the sizzle of beef hitting a scorching wok takes me right back to that chaotic but transformative kitchen moment.

Last winter, my friend Mei dropped by unexpectedly during a snowstorm, looking frozen and miserable. I had just finished prepping ingredients for this stir-fry and without thinking, I added more noodles to the pot. The look on her face when she took that first steamy bite, her glasses fogging up as she leaned over the bowl, was worth every minute spent slicing vegetables in precise julienne.

Ingredients

  • Flank steak: Its worth spending a little extra on good beef since its the star, and always slice it against the grain for maximum tenderness.
  • Udon noodles: The fresh ones from Asian markets have this incredible chewy texture that perfectly captures the sauce, but vacuum-packed ones work well too.
  • Chili garlic sauce: Start with less than you think you need, as its potency varies wildly between brands and you can always add more.
  • Sugar snap peas: The sweet crunch provides perfect textural contrast to the chewy noodles, and they retain their bright color beautifully.

Instructions

Marinate with purpose:
Combine the sliced beef with soy sauce, cornstarch, and sesame oil, then let it sit for 10 minutes while you prep other ingredients. The cornstarch creates a silky texture that helps the sauce cling to the meat.
Sauce assembly:
Whisk together soy sauce, oyster sauce, chili garlic sauce, rice vinegar, brown sugar, and water until the sugar dissolves completely. This balance of salty, sweet, tangy and spicy is what makes people close their eyes when they take that first bite.
Wok wizardry:
Get your wok screaming hot before adding oil, then keep things moving constantly. Listen for that satisfying sizzle when the beef hits the pan, cooking just until it loses its raw appearance.
Vegetable choreography:
Add vegetables in order of cooking time, starting with onions, then bell pepper and carrot, finishing with sugar snap peas. They should maintain some crispness when finished.
The grand finale:
Return beef to the wok with noodles and spring onions, then pour sauce over everything while tossing continuously. Watch as everything glistens with that savory coating, becoming greater than the sum of its parts.
Crisp red bell peppers and onions tossed with chewy udon noodles in a glossy, spicy sauce. Save to Pinterest
Crisp red bell peppers and onions tossed with chewy udon noodles in a glossy, spicy sauce. | freshforklab.com

My normally picky nephew devoured this stir-fry during a family dinner last month, even picking out individual vegetables he claimed to hate, examining them suspiciously, then shrugging and eating them anyway. My sister-in-law glanced at me with raised eyebrows across the table, mouthing what magic is this while I just smiled, knowing the answer was simply in the balance of flavors and textures that make this dish irresistible even to vegetable skeptics.

Make It Your Own

While the recipe calls for flank steak, Ive made this with thinly sliced chicken thighs, pork tenderloin, and even firm tofu with excellent results. Each protein brings its own character to the dish, with tofu surprisingly being my husbands favorite version despite his usual meat-centric preferences. Just adjust cooking times accordingly, as tofu and thinly sliced chicken cook much faster than beef.

Noodle Know-How

Fresh udon noodles need only a quick dunk in boiling water, while dried require proper cooking. Regardless of which you use, always rinse them under cold water after cooking to stop them from getting gummy, then toss with a tiny bit of oil to prevent sticking before adding to your stir-fry. This simple step makes all the difference between perfectly distinct noodles and a clumpy mass.

Serving Suggestions

The vibrant colors and aromas of this dish deserve proper presentation, so serve it in wide, shallow bowls that showcase all the components. Its a complete meal on its own, but pairs beautifully with a simple cucumber salad dressed with rice vinegar and sesame oil for a refreshing contrast to the richness of the stir-fry.

  • For a dinner party, set out little bowls of extra chili oil, toasted sesame seeds, and sliced scallions so guests can customize their heat level and garnish.
  • A crisp, cold beer like Sapporo or Tsingtao cuts through the richness perfectly, as does a slightly sweet Riesling if you prefer wine.
  • Leftovers make an incredible next-day lunch, though the noodles will absorb more sauce overnight, intensifying the flavors.
Sizzling spicy beef stir fry with udon noodles served steaming hot, garnished with fresh scallions. Save to Pinterest
Sizzling spicy beef stir fry with udon noodles served steaming hot, garnished with fresh scallions. | freshforklab.com

This spicy beef udon has become my reliable kitchen ally, stepping in on busy weeknights and special occasions alike. Each time I make it, the familiar aromas remind me that good cooking isnt always about fancy ingredients or techniques, but about understanding how flavors and textures come together to create something greater than their parts.

Recipe FAQs

Yes, rice noodles, ramen, or even spaghetti work well. Adjust cooking time based on your chosen noodle's instructions. Thicker noodles pair better with this robust sauce.

Reduce the chili garlic sauce to 1 tablespoon or use a milder variety. You can also substitute it with sriracha or omit it entirely, adjusting the salt level accordingly.

Broccoli, mushrooms, bok choy, zucchini, and snap peas all work beautifully. Keep uniform sizes for even cooking and aim for a mix of colors for visual appeal.

Marinate the beef and chop vegetables up to 4 hours ahead. Store separately in the refrigerator. Mix the sauce in advance. Final cooking should happen fresh to maintain texture and heat.

Chicken breast, shrimp, or firm tofu all adapt well to this dish. Use similar cooking times as beef, adjusting for thickness. Tofu benefits from pressing before cooking to achieve a better texture.

Ensure your sauce is warm and well-mixed before adding it to the wok. If too thick, add 1-2 tablespoons of water. Toss continuously for 2-3 minutes to coat everything evenly.

Spicy Beef Stir Fry with Udon

Vibrant stir fry with tender beef, fresh vegetables, and chewy udon noodles in a spicy, savory sauce. Serves 4.

Prep 20m
Cook 15m
Total 35m
Servings 4
Difficulty Medium

Ingredients

Beef

  • 14 oz flank steak or sirloin, thinly sliced
  • 1 tablespoon soy sauce
  • 1 teaspoon cornstarch
  • 1 teaspoon sesame oil

Noodles

  • 14 oz fresh or pre-cooked udon noodles

Vegetables

  • 1 red bell pepper, thinly sliced
  • 1 small carrot, julienned
  • 1 small onion, thinly sliced
  • 3.5 oz sugar snap peas, trimmed
  • 2 spring onions, sliced, plus extra for garnish

Sauce

  • 3 tablespoons soy sauce
  • 1 tablespoon oyster sauce
  • 2 tablespoons chili garlic sauce
  • 1 tablespoon rice vinegar
  • 2 teaspoons brown sugar
  • 2 tablespoons water

Aromatics

  • 2 cloves garlic, minced
  • 1 tablespoon fresh ginger, grated

Cooking

  • 2 tablespoons vegetable oil

Instructions

1
Marinate the beef: Combine sliced beef with 1 tablespoon soy sauce, cornstarch, and sesame oil in a bowl. Mix thoroughly and let stand for 10 minutes.
2
Prepare the sauce: Whisk together soy sauce, oyster sauce, chili garlic sauce, rice vinegar, brown sugar, and water in a small bowl until well combined.
3
Cook the noodles: Prepare udon noodles according to package directions. Drain thoroughly and set aside.
4
Sear the beef: Heat 1 tablespoon oil in a large wok or skillet over high heat. Add marinated beef and stir-fry for 2-3 minutes until browned and just cooked through. Transfer to a plate.
5
Stir-fry the vegetables: Add remaining 1 tablespoon oil to the wok. Stir-fry garlic and ginger for 30 seconds until fragrant. Add onions, bell pepper, carrot, and sugar snap peas. Stir-fry for 3-4 minutes until vegetables are crisp-tender.
6
Combine and finish: Return beef to the wok with cooked udon noodles and spring onions. Pour sauce over the mixture and toss for 2-3 minutes until evenly coated and heated through.
7
Serve: Transfer to serving dishes and garnish with additional spring onions. Serve immediately.
Additional Information

Equipment Needed

  • Large wok or skillet
  • Sharp knife
  • Cutting board
  • Mixing bowls
  • Tongs or spatula

Nutrition (Per Serving)

Calories 540
Protein 29g
Carbs 68g
Fat 16g

Allergy Information

  • Contains soy in soy sauce and oyster sauce
  • Contains gluten in soy sauce, udon noodles, and oyster sauce
  • Contains shellfish in oyster sauce
  • Use gluten-free soy sauce and noodles for gluten-free preparation
  • Use vegetarian oyster sauce substitute for shellfish-free version
Natalie Chen

Sharing easy, flavorful recipes and kitchen tips for everyday cooks and food lovers.