Spicy Miso and Garlic Udon Noodle Soup

By AislePrompt Test Kitchen · Reviewed by AislePrompt Editorial · ·

A warming Japanese-inspired udon soup enriched with miso, garlic, and chili to help clear sinuses and provide comforting nourishment. This japanese-inspired noodles (vegetarian) ready in about 30 minutes pairs dried udon noodles, water, white miso paste for a weeknight-friendly dinner that comes together with one pan and minimal cleanup. Each serving lands at about 320 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: 10 min Cook: 20 min Serves 4 Japanese cuisine 320 cal/serving
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Ingredients

Instructions

  1. Step 1: Bring 5 cups water to a boil in a large pot over high heat. Add 8 oz dried udon noodles and cook for 8 minutes until tender but still chewy, then drain and set aside.
  2. Step 2: In the same pot, heat 1 tbsp sesame oil over medium heat. Add 4 minced garlic cloves and 1 tbsp grated fresh ginger, sautéing for 1 minute until fragrant but not browned.
  3. Step 3: Add 1 cup sliced shiitake mushrooms and 1/2 tsp red chili flakes, cooking for 4 minutes until mushrooms soften.
  4. Step 4: Lower heat and whisk in 3 tbsp white miso paste and 1 tbsp soy sauce until dissolved, then gradually add 4 cups fresh hot water to make a broth.
  5. Step 5: Return the cooked udon noodles to the pot and gently heat through for 2 minutes.
  6. Step 6: Serve the soup garnished with 2 thinly sliced green onions, enjoying the spicy, savory broth that helps open nasal passages and comforts cold symptoms.

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Frequently asked questions

How long does Spicy Miso and Garlic Udon Noodle Soup take to make?

Total time is about 30 minutes (10 min prep + 20 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 Spicy Miso and Garlic Udon Noodle Soup?

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 dried udon noodles from drying out.

Can I substitute ingredients in Spicy Miso and Garlic Udon Noodle Soup?

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 Spicy Miso and Garlic Udon Noodle Soup 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.

Is Spicy Miso and Garlic Udon Noodle Soup vegetarian?

Yes — this recipe is tagged vegetarian based on its ingredient list. Always cross-check labels for packaged ingredients (sauces, broths, condiments) since formulations vary by brand.

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