Keto Lemon-Dill Salmon & Asparagus Soup

By AislePrompt Test Kitchen · Reviewed by AislePrompt Editorial · ·

A light yet luxurious soup with flaky salmon, tender asparagus, and a bright dill-lime sauce—ready in 25 minutes. This french-inspired keto (low carb) ready in about 40 minutes pairs ounces salmon fillets, tablespoon olive oil, ounces asparagus for a weeknight-friendly dinner that comes together with one pan and minimal cleanup. Each serving lands at about 430 calories and feeds 2, 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.

★ 4.5 (12 ratings) Prep: 15 min Cook: 25 min Serves 2 French cuisine 430 cal/serving
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Ingredients

Instructions

  1. Step 1: Pat 12 ounces salmon fillets dry and season with 1/2 teaspoon salt and 1/4 teaspoon black pepper. Heat 1 tablespoon olive oil in a skillet over medium-high heat; sear salmon for 3 minutes per side until golden and just cooked through, then set aside.
  2. Step 2: Trim 10 ounces asparagus and cut into 1-inch pieces. Sauté in the same skillet with 2 minced garlic cloves for 4 minutes until crisp-tender and slightly caramelized, stirring often.
  3. Step 3: Add 1 cup chicken broth, 1/4 cup white wine, and 2 tablespoons fresh dill to the skillet; simmer for 5 minutes until liquid reduces slightly and flavors meld.
  4. Step 4: Stir in 1/4 cup heavy cream and the juice of 1 lemon, simmering gently for 3 minutes until slightly thickened and creamy. Add 1 cup chicken broth to adjust consistency if needed.
  5. Step 5: Carefully transfer soup to a blender (or use an immersion blender), blending until smooth. Return to the pot, add the seared salmon (and any juices), and warm through for 2 minutes without boiling. Garnish with additional dill before serving.

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Frequently asked questions

How long does Keto Lemon-Dill Salmon & Asparagus Soup take to make?

Total time is about 40 minutes (15 min prep + 25 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 Keto Lemon-Dill Salmon & Asparagus 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 ounces salmon fillets from drying out.

Can I substitute ingredients in Keto Lemon-Dill Salmon & Asparagus 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 Keto Lemon-Dill Salmon & Asparagus Soup for a different number of people?

The recipe is written for 2 servings. Multiply each ingredient by (your serving target / 2). 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 Keto Lemon-Dill Salmon & Asparagus Soup low carb?

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

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