Steamed Kashmiri Trout with Walnut and Mustard Seed Sauce

By AislePrompt Test Kitchen · Reviewed by AislePrompt Editorial · ·

Fresh trout fillets delicately steamed and topped with a vibrant walnut and mustard seed sauce inspired by Kashmiri flavors. This indian-inspired seafood ready in about 22 minutes blends walnuts, chopped, mustard seeds, cumin seeds into a versatile sauce that lifts everything from grain bowls and roasted vegetables to grilled proteins — a small-batch staple worth keeping in the fridge. Each serving lands at about 280 calories and feeds 4, so a small batch covers several meals across the week without taking over the fridge. 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: 12 min Serves 4 Indian cuisine 280 cal/serving
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Ingredients

Instructions

  1. Step 1: Set up a steamer with 1 cup water and bring to a gentle boil over medium heat. Season 4 fresh trout fillets with 1 tsp salt and place them on a heatproof plate.
  2. Step 2: Steam the trout fillets for 8-10 minutes until the flesh is opaque and flakes easily with a fork.
  3. Step 3: While the fish steams, heat 2 tbsp vegetable oil in a small pan over medium heat. Add 1 tbsp mustard seeds and 1 tsp cumin seeds, toasting until the seeds begin to pop and release aroma, about 1 minute.
  4. Step 4: Add 1 finely chopped green chili and 1/3 cup chopped walnuts to the pan, sautéing gently for 2 minutes until the walnuts are toasted and the mixture is fragrant.
  5. Step 5: Turn off the heat and stir in 2 tbsp lemon juice, 2 tbsp chopped fresh coriander leaves, and adjust salt to taste.
  6. Step 6: Carefully remove the steamed trout from the steamer and spoon the walnut-mustard seed sauce evenly over each fillet before serving.

Equipment for this recipe

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Frequently asked questions

How long does Steamed Kashmiri Trout with Walnut and Mustard Seed Sauce take to make?

Total time is about 22 minutes (10 min prep + 12 min cook). A small batch typically covers several meals in the week — store as the recipe directs.

How do I store leftover Steamed Kashmiri Trout with Walnut and Mustard Seed Sauce?

Transfer to an airtight jar and refrigerate for up to 5–7 days. Most sauces freeze well for up to 2 months — portion into small containers or freezer bags so you can thaw only what you need. Stir before serving; cream- or yogurt-based sauces may separate on standing.

Can I substitute ingredients in Steamed Kashmiri Trout with Walnut and Mustard Seed Sauce?

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 Steamed Kashmiri Trout with Walnut and Mustard Seed Sauce 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 Steamed Kashmiri Trout with Walnut and Mustard Seed Sauce?

Indian seafood 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.