How many servings does this recipe make?

This recipe makes 4 servings. You can adjust the portion size directly on this page.

What ingredients do I need for Pissaladière~ A French Tart With Caramelized Onions, Mushrooms & Tomatoes?

You need 13 ingredients. The key ingredients include: 2 tablespoons unsalted butter, 1 tablespoon extra virgin olive oil, 2 vidalia onions, thinly sliced, 1 packet sliced medley of mushrooms, shitake & baby portobello, and more.

Pissaladière~ A French Tart With Caramelized Onions

Name: Pissaladière~ A French Tart With Caramelized Onions, Mushrooms & Tomatoes
Prep time: 15 min
Cook time: 30 min
Total time: 45 min
Yield: 4 servings
Ingredients: 2 tablespoons unsalted butter; 1 tablespoon extra virgin olive oil; 2 vidalia onions, thinly sliced; 1 packet sliced medley of mushrooms, shitake & baby portobello; 2 cloves of garlic, chopped; 2 sprigs thyme; 1 teaspoon thyme leaves; 1 sprig rosemary; salt & freshly ground pepper to taste; 1 sheet frozen puff pastry, thawed; 1 large egg yolk, ligtly beaten with one tsp water; 10 small nicoise olives, halved lengthwise; 15 grape tomatoes, halved lengthwise

Fresh, crisp and full of flavor — this Pissaladière~ A French Tart With Caramelized Onions, Mushrooms & Tomatoes is a must-try. Made with unsalted butte…

This Pissaladière~ A French Tart With Caramelized Onions, Mushrooms & Tomatoes relies on simple, everyday ingredients such as unsalted butter, extra virgin olive oil, of garlic, chopped and sprigs thyme. It comes together quickly and makes 4 servings, at about 220 kcal each. The step-by-step instructions below are written to be easy to follow, even on a busy day.

Whether you're rounding off a family dinner, bringing a treat to a gathering, or simply satisfying a sweet craving, this Pissaladière~ A French Tart With Caramelized Onions, Mushrooms & Tomatoes delivers. Serve it warm or at room temperature, and add a scoop of ice cream or a spoonful of whipped cream for an extra-special finish.

Updated Jun 30, 2026

Serves 4 Salads

Tips for the best results

Read through all the steps once before you start and measure out your ingredients first — it makes everything go more smoothly.
Preheat the oven fully and bake on the middle rack for the most even results.
Check for doneness a few minutes early — a toothpick in the center should come out with just a few moist crumbs.
Let it cool before slicing so it sets properly and holds its shape.
Store leftovers in an airtight container in the fridge and enjoy within a few days.

Variations & substitutions

Use a neutral oil or a plant-based spread in place of butter for a dairy-free version.

No specific allergen information. Please check the ingredient list for possible allergens.

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Pissaladière~ A French Tart With Caramelized Onions, Mushrooms & Tomatoes

Tips for the best results

Variations & substitutions

My Personal Notes

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