Stir-Fried Korean Glass Noodles with Vegetables and Beef

By AislePrompt Test Kitchen · Reviewed by AislePrompt Editorial · ·

A savory and slightly sweet Korean japchae featuring tender glass noodles tossed with marinated beef and crisp vegetables. This korean-inspired noodles ready in about 30 minutes pairs sweet potato glass noodles, soy sauce, sugar for a weeknight-friendly dinner that comes together with one pan and minimal cleanup. Each serving lands at about 350 calories and feeds 4, so it slots cleanly into a weekly meal plan and pairs well with a quick salad or grain on the side. Tap "Plan a meal with the AI" below to drop this recipe into your week and send the ingredients straight to Instacart. Nutrition values are approximate, calculated from USDA FoodData Central (fdc.nal.usda.gov) — verify against ingredient labels for any health-driven dietary plan.

Prep: 15 min Cook: 15 min Serves 4 Korean cuisine 350 cal/serving
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Ingredients

Instructions

  1. Step 1: Bring 4 cups of water to a boil in a large pot. Add 8 oz sweet potato glass noodles and cook for 6 minutes until soft but still chewy, then drain and rinse under cold water to stop cooking.
  2. Step 2: In a medium bowl, mix 4 tbsp soy sauce, 1 tbsp sugar, 2 tbsp sesame oil, and 1/4 tsp black pepper. Toss the cooked noodles gently in this marinade and set aside.
  3. Step 3: Heat 1 tbsp vegetable oil in a large skillet over medium-high heat. Add 3 minced garlic cloves and sauté for 30 seconds until fragrant.
  4. Step 4: Add 8 oz thinly sliced beef sirloin to the skillet and stir-fry for 3-4 minutes until browned and cooked through. Remove beef from skillet and set aside.
  5. Step 5: In the same skillet, add another 1 tbsp vegetable oil. Add 1 medium julienned carrot, 1 small julienned red bell pepper, and 2 cups fresh spinach. Stir-fry for 3 minutes until vegetables are tender but crisp.
  6. Step 6: Return the beef to the skillet along with the marinated noodles and 2 sliced green onions. Toss everything together and cook for 2 more minutes until heated through and flavors meld.
  7. Step 7: Transfer to a serving dish and sprinkle with 1 tbsp toasted sesame seeds before serving.

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Frequently asked questions

How long does Stir-Fried Korean Glass Noodles with Vegetables and Beef take to make?

Total time is about 30 minutes (15 min prep + 15 min cook). Most home cooks find this fits comfortably into a weeknight; double the batch on Sunday for two dinners.

How do I store leftover Stir-Fried Korean Glass Noodles with Vegetables and Beef?

Cool to room temperature within 2 hours, then store in an airtight container in the fridge for up to 4 days. Reheat covered in a 350°F oven for 10-12 minutes, or microwave at 70% power in 60-second bursts to keep sweet potato glass noodles from drying out.

Can I substitute ingredients in Stir-Fried Korean Glass Noodles with Vegetables and Beef?

Yes — most ingredients in this recipe have flexible swaps. For oil, use any neutral high-smoke-point oil (avocado, grapeseed, refined coconut). For aromatics, dried herbs at ⅓ the volume of fresh work in a pinch. The full ingredient list is shoppable on Instacart so you can see substitutes in real time.

How do I scale Stir-Fried Korean Glass Noodles with Vegetables and Beef for a different number of people?

The recipe is written for 4 servings. Multiply each ingredient by (your serving target / 4). Cook time stays roughly the same up to 2x; for 3-4x batches, switch from a skillet to a sheet pan or stockpot so the food isn't crowded — overcrowding steams instead of browns.

What goes well with Stir-Fried Korean Glass Noodles with Vegetables and Beef?

Korean noodles like this pair well with a simple grain (rice, couscous, or crusty bread), a quick salad with acid (lemon vinaigrette, pickled onions), and a pan sauce or yogurt-based dip. Tap "Plan a meal with the AI" to get specific side suggestions.

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