Orval Cheese and Leek Gratin

By AislePrompt Test Kitchen · Reviewed by AislePrompt Editorial · ·

A creamy, tangy gratin combining the rich flavor of Orval cheese with caramelized leeks and earthy mushrooms. This belgian-inspired quick meals ready in about 45 minutes pairs cubed Orval cheese, sliced Leeks, sliced Mushrooms for a weeknight-friendly dinner that comes together with one pan and minimal cleanup. Each serving lands at about 350 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.

★ 3.9 (9 ratings) Prep: 20 min Cook: 25 min Serves 4 Belgian cuisine 350 cal/serving
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Ingredients

Instructions

  1. Step 1: Preheat oven to 375°F (190°C). In a large oven-safe skillet, melt 2 tbsp butter over medium heat. Add 2 sliced leeks and sauté for 8 minutes until tender and golden.
  2. Step 2: Stir in 12 oz sliced mushrooms, cooking for 5 minutes until softened. Add 1/2 tsp salt and 1/4 tsp black pepper, then deglaze with 1/4 cup white wine, scraping up browned bits.
  3. Step 3: Fold in 1 cup heavy cream and 1 cup Orval cheese cubes, stirring until melted. Top with 1/2 cup grated Parmesan, season with remaining 1/4 tsp black pepper, and spread evenly.
  4. Step 4: Transfer to oven and bake for 20 minutes until bubbly and golden. Let rest 5 minutes before serving.

Equipment for this recipe

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Frequently asked questions

How long does Orval Cheese and Leek Gratin take to make?

Total time is about 45 minutes (20 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 Orval Cheese and Leek Gratin?

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 cubed orval cheese from drying out.

Can I substitute ingredients in Orval Cheese and Leek Gratin?

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 Orval Cheese and Leek Gratin 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 Orval Cheese and Leek Gratin?

Belgian quick meals 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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