Sablon District Vegetable Tart with Gruyère

By , Test Kitchen Director · Reviewed by AislePrompt Editorial · ·

A rustic, flaky tart filled with roasted seasonal vegetables and melted Gruyère cheese, inspired by the elegant, traditional cuisine of Brussels' upscale Sablon neighborhood. This belgian-inspired vegetarian ready in about 90 minutes layers all-purpose flour, unsalted butter, ice water into a dessert worth slowing down for — great for weekend baking, holiday tables, or any time you want a sweet payoff at the end of a meal. Each serving lands at about 420 calories and feeds 6, so it slots into a weekend bake or a special-occasion dessert tray. 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.

★ 4.1 (14 ratings) Prep: 40 min Cook: 50 min Serves 6 Belgian cuisine 420 cal/serving
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Ingredients

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Instructions

  1. Step 1: For crust: Pulse flour, salt, and cold butter in a food processor until pea-sized crumbs form. Add ice water and pulse until dough holds together. Form into a disk, wrap, and chill 30 minutes.
  2. Step 2: Roll chilled dough into a 12-inch circle. Transfer to a 9-inch tart pan, press into edges, trim excess, and prick bottom with a fork. Chill 15 minutes.
  3. Step 3: Preheat oven to 375°F. Blind-bake crust for 15 minutes with parchment and pie weights, then bake 5 minutes uncovered until golden.
  4. Step 4: Toss sliced zucchini, squash, bell pepper, and onion with 2 tbsp butter in a skillet. Cook over medium heat for 8-10 minutes until tender but not mushy, stirring occasionally.
  5. Step 5: Whisk cream, egg, thyme, salt, and pepper in a bowl. Stir in grated Gruyère until smooth.
  6. Step 6: Spread cooked vegetables evenly over pre-baked crust, then pour cream mixture over vegetables. Bake 25-30 minutes until filling is set and top is golden. Cool 10 minutes before slicing.

Frequently asked questions

How long does Sablon District Vegetable Tart with Gruyère take to make?

Total time is about 90 minutes (40 min prep + 50 min cook). Most home bakers find this fits a weekend afternoon; chill or store as the recipe directs before serving.

How do I store leftover Sablon District Vegetable Tart with Gruyère?

Cool fully before storing. Most baked desserts keep at room temperature in an airtight container for 2–3 days, or in the fridge for up to 5 days. Cream- or custard-based desserts must go in the fridge within 2 hours; reheat gently or serve cold per the recipe.

Can I substitute ingredients in Sablon District Vegetable Tart with Gruyère?

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 Sablon District Vegetable Tart with Gruyère 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 Sablon District Vegetable Tart with Gruyère?

Belgian vegetarian 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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