Mushroom & Leek Soup

By AislePrompt Test Kitchen · Reviewed by AislePrompt Editorial · ·

An earthy, umami-rich soup featuring a medley of mushrooms and leeks, simmered in a savory broth for a deeply satisfying Whole30 meal. This french-inspired whole30 ready in about 40 minutes pairs avocado oil, sliced cremini mushrooms, minced garlic for a weeknight-friendly dinner that comes together with one pan and minimal cleanup. Each serving lands at about 180 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.

★ 3.7 (12 ratings) Prep: 10 min Cook: 30 min Serves 4 French cuisine 180 cal/serving
Plan a meal with the AI → Shop this recipe on Instacart → Shop equipment ↓

Ingredients

Instructions

  1. Step 1: Heat avocado oil in a large pot over medium heat. Add sliced leeks and cook for 5 minutes until softened and translucent, stirring occasionally.
  2. Step 2: Add sliced mushrooms and cook for 8 minutes until they release liquid and begin browning.
  3. Step 3: Stir in minced garlic and cook for 1 minute until fragrant.
  4. Step 4: Add tomato paste and cook for 2 minutes until darkened and aromatic.
  5. Step 5: Pour in mushroom broth, add thyme, bay leaf, and season with salt and pepper. Bring to a gentle simmer and cook for 20 minutes.
  6. Step 6: Remove bay leaf and stir in 2 tbsp fresh parsley. Serve hot.

Equipment for this recipe

Top-rated tools to make this recipe successfully.

More Knives & cutting boards → Shop all kitchen tools →

Frequently asked questions

How long does Mushroom & Leek Soup take to make?

Total time is about 40 minutes (10 min prep + 30 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 Mushroom & Leek 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 avocado oil from drying out.

Can I substitute ingredients in Mushroom & Leek 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 Mushroom & Leek 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.

What goes well with Mushroom & Leek Soup?

French whole30 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.

What others are saying