Creamy Zucchini and Fennel Soup with Lemon Zest

By · Reviewed by AislePrompt Editorial · ·

A smooth, vegetable-forward soup with the subtle anise flavor of fennel, brightened by fresh lemon. This mediterranean-inspired soups ready in about 40 minutes pairs medium (about 1 lb), diced zucchini, large (about 8 oz), diced fennel bulb, medium, diced yellow onion for a weeknight-friendly dinner that comes together with one pan and minimal cleanup. Each serving lands at about 220 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: 25 min Serves 4 Mediterranean cuisine 220 cal/serving
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Ingredients

Instructions

  1. Step 1: Heat olive oil in a large pot over medium heat. Add fennel and onion, sauté for 8 minutes until softened and translucent.
  2. Step 2: Add zucchini, 1/2 tsp salt, and 1/4 tsp pepper. Cook for 3 minutes, stirring frequently.
  3. Step 3: Pour in vegetable broth and bring to a gentle simmer. Cover and cook for 15 minutes until vegetables are tender.
  4. Step 4: Remove from heat and use an immersion blender to puree soup until completely smooth (or transfer to a countertop blender in batches).
  5. Step 5: Return soup to low heat, stir in heavy cream and lemon juice, and simmer for 2 minutes until heated through (do not boil).
  6. Step 6: Stir in lemon zest and adjust seasoning with salt and pepper. Serve immediately with additional zest for garnish.

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Frequently asked questions

How long does Creamy Zucchini and Fennel Soup with Lemon Zest 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 Creamy Zucchini and Fennel Soup with Lemon Zest?

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 medium, diced yellow onion from drying out.

Can I substitute ingredients in Creamy Zucchini and Fennel Soup with Lemon Zest?

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 Creamy Zucchini and Fennel Soup with Lemon Zest 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 Creamy Zucchini and Fennel Soup with Lemon Zest?

Mediterranean soups 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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