Fish and Noodle Soup

Emma Sullivan By Emma Sullivan January 23, 2025 4.7 (112 reviews)
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Fish and Noodle Soup

This fish and noodle soup is the answer to busy weeknight dinners. Packed with vegetables, tender white fish, and satisfying udon noodles, it's on the table in 20 minutes - and it's genuinely healthy too. High in protein, low in fat, and loaded with vegetables, it's the kind of soup that makes healthy eating effortless.

What makes this soup special is its simplicity. Fresh ginger and soy sauce bring depth to a light broth, the vegetables stay crisp-tender, and the fish stays perfectly flaky. It's the kind of meal that feels nourishing without feeling heavy.

Why This Fish Noodle Soup Works

The magic of this recipe is in the technique. By adding ingredients in stages, everything cooks to perfection. The vegetables go in first and simmer just long enough to become tender-crisp. The fish goes in last so it stays moist and flaky. And the spinach wilts in the residual heat, keeping its bright green color.

The result is a soup with distinct textures and flavors in every bite - not a mushy mess where everything's been cooked to death. That contrast between the chewy noodles, flaky fish, and crisp vegetables is what makes this soup genuinely satisfying.

Choosing the Right Fish

The key is using firm white fish that holds its shape during cooking. The best options include:

  • Snapper: Firm texture with mild, sweet flavor
  • Cod: Classic choice with large, meaty flakes
  • Barramundi: Buttery flavor with good structure
  • Blue-eye: Mild and versatile, holds up beautifully
  • Halibut: Premium option with meaty texture

Avoid delicate fish like sole, flounder, or tilapia - they'll disintegrate in the broth. Cut your fish into thick strips about 2cm wide so they cook evenly without falling apart.

The Best Noodles for This Soup

Fresh udon noodles are ideal - you'll find them in the refrigerated section of Asian grocery stores (and increasingly in regular supermarkets). They're thick, chewy, and hold up well in hot broth. If you can't find fresh udon, these alternatives work well:

  • Dried udon: Cook separately, add to bowls before ladling soup
  • Rice noodles: For a lighter, gluten-free option
  • Soba noodles: Adds nutty buckwheat flavor
  • Ramen noodles: Curly egg noodles work great too

Tips for Perfect Fish Noodle Soup

  • Don't overcook the fish: Add it in the last 2-3 minutes. It's done when just opaque.
  • Cut vegetables thin: Matchstick cuts cook quickly and evenly
  • Use salt-reduced: Both stock and soy sauce control sodium levels
  • Fresh ginger matters: Freshly grated ginger has bright, zingy flavor that dried can't match
  • Warm your bowls: A splash of hot water keeps the soup hot longer

Customizing Your Soup

This soup is incredibly versatile. Here are some variations to try:

  • Add protein: A soft-boiled egg or cubed firm tofu makes it more filling
  • Spice it up: Add chili flakes, sriracha, or a drizzle of chili oil
  • More umami: A splash of fish sauce or miso paste deepens the broth
  • Switch vegetables: Bok choy, snow peas, or edamame all work beautifully
  • Garnishes: Sesame seeds, sliced scallions, or fresh cilantro

Making It Even Healthier

At 245 calories per serving with 26g of protein and only 6g of fat, this soup is already a healthy choice. To make it even lighter:

  • Skip the noodles entirely for an ultra-low-carb version (or use zucchini noodles)
  • Double the vegetables for more fiber and nutrients
  • Use low-sodium stock and reduce the soy sauce
  • Add extra spinach or other leafy greens

Make-Ahead Tips

While this soup is best made fresh, you can prep components ahead:

  • Prep vegetables: Cut everything in advance and store refrigerated
  • Make the broth: The seasoned broth (without fish/noodles/spinach) keeps 3 days refrigerated
  • Portion fish: Cut and refrigerate up to 1 day ahead

When ready to serve, bring the broth to a boil and add fresh components. Don't try to reheat fully assembled soup - the noodles become soggy and fish toughens.

Blending the soup until smooth and creamy.
Blending the soup until smooth and creamy.

Fish and Noodle Soup

Quick, healthy Asian-inspired soup with white fish, udon noodles, Swiss brown mushrooms, and baby spinach. A complete nutritious meal ready in just 20 minutes.

Prep: 10 min
Cook: 10 min
Total: 20 min
Servings:
4

Nutrition per serving

245 Calories
26g Protein
22g Carbs
6g Fat
3g Fiber
4g Sugar

Ingredients

Instructions

  1. Prepare broth. Bring stock, water, and soy sauce to boil.
  2. Add vegetables. Add carrots, celery, zucchini, mushrooms, ginger, and noodles. Simmer 4 minutes.
  3. Add fish. Add fish and simmer 2-3 minutes until cooked through.
  4. Finish. Add spinach and cook 1 minute until wilted. Season and serve.

Recipe Notes

  • Fish options: Blue-eye, snapper, barramundi, cod, or any firm white fish works well.
  • Noodle swaps: Rice noodles, soba noodles, or ramen are great alternatives.
  • Add protein: Soft-boiled eggs or firm tofu make it even more filling.
  • Garnish ideas: Sliced scallions, sesame seeds, or a drizzle of sesame oil.