Brussels-Style Quiche with Leeks & Green Onions

By AislePrompt Test Kitchen · Reviewed by AislePrompt Editorial · ·

A savory quiche with leeks, green onions, and a flaky crust, inspired by Brussels' culinary traditions. This belgian-inspired quick meals ready in about 60 minutes pairs pre-made, rolled out Pie crust, large Eggs, Milk for a weeknight-friendly dinner that comes together with one pan and minimal cleanup. Each serving lands at about 300 calories and feeds 6, 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 (14 ratings) Prep: 30 min Cook: 30 min Serves 6 Belgian cuisine 300 cal/serving
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Ingredients

Instructions

  1. Step 1: Preheat oven to 375°F (190°C). Line a 9-inch pie dish with pie crust, then trim and crimp edges.
  2. Step 2: In a bowl, whisk eggs, milk, cream of mushroom soup, salt, and pepper until well combined.
  3. Step 3: Spread cooked leeks and green onions in the crust, then sprinkle crumbled bacon over the top.
  4. Step 4: Pour the egg mixture into the crust, ensuring it covers all ingredients. Bake for 25-30 minutes until golden and set.

Equipment for this recipe

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Frequently asked questions

How long does Brussels-Style Quiche with Leeks & Green Onions take to make?

Total time is about 60 minutes (30 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 Brussels-Style Quiche with Leeks & Green Onions?

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 large eggs from drying out.

Can I substitute ingredients in Brussels-Style Quiche with Leeks & Green Onions?

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 Brussels-Style Quiche with Leeks & Green Onions for a different number of people?

The recipe is written for 6 servings. Multiply each ingredient by (your serving target / 6). 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 Brussels-Style Quiche with Leeks & Green Onions?

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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