Slow-Braised Leek and Mushroom Stew with Thyme

By AislePrompt Test Kitchen · Reviewed by AislePrompt Editorial · ·

A comforting, deeply savory stew where leeks and mushrooms slowly absorb aromatic broth until tender and flavorful. This french-inspired soups ready in about 45 minutes pairs vegetable broth, fresh thyme, olive oil for a weeknight-friendly dinner that comes together with one pan and minimal cleanup. Each serving lands at about 185 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.

★ 4.5 (15 ratings) Prep: 15 min Cook: 30 min Serves 4 French cuisine 185 cal/serving
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Ingredients

Instructions

  1. Step 1: Heat 2 tbsp olive oil in a heavy pot over medium heat. Add 3 medium thinly sliced leeks and cook for 5 minutes, stirring occasionally, until softened but not browned.
  2. Step 2: Add 8 oz sliced cremini mushrooms to the pot and cook for 7 minutes, stirring frequently, until mushrooms release their liquid and reduce in volume.
  3. Step 3: Sprinkle 1 tbsp all-purpose flour over the vegetables and stir for 1 minute until golden, then slowly pour in 2 cups vegetable broth while whisking constantly.
  4. Step 4: Tie 1 fresh thyme sprig with kitchen twine, add to the pot, and bring to a gentle simmer. Cover partially and cook for 25 minutes on low heat, stirring once halfway through.
  5. Step 5: Remove thyme sprig, season with 1/2 tsp salt and 1/4 tsp black pepper, and cook uncovered for 3 more minutes until sauce coats the back of a spoon.

Frequently asked questions

How long does Slow-Braised Leek and Mushroom Stew with Thyme take to make?

Total time is about 45 minutes (15 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 Slow-Braised Leek and Mushroom Stew with Thyme?

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 vegetable broth from drying out.

Can I substitute ingredients in Slow-Braised Leek and Mushroom Stew with Thyme?

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 Slow-Braised Leek and Mushroom Stew with Thyme 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 Slow-Braised Leek and Mushroom Stew with Thyme?

French 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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