Ingredients for - Tarte aux Moutarde (French Tomato and Mustard Pie)

1. Refrigerated pie pastry 1 (9 inch)
2. Grainy brown mustard ½ cup
3. Swiss cheese, about 1/4-inch thick 6 slices
4. Ripe tomatoes, thinly sliced 3 large
5. Olive oil, or as needed 1 tablespoon
6. Herbes de Provence 2 tablespoons

How to cook deliciously - Tarte aux Moutarde (French Tomato and Mustard Pie)

1 . Stage

Preheat the oven to 375 degrees F (190 degrees C). Fit pie pastry into a 9-inch pie dish. Poke holes in bottom of crust with a fork.

2 . Stage

Spread mustard evenly over bottom of crust. Cover with Swiss cheese, then arrange tomato slices over top to cover cheese in a spiral, from the outer edge to the center. Drizzle oil over tomatoes and sprinkle herbes de Provence over top.

3 . Stage

Bake in the preheated oven until crust is golden brown, cheese is melted, and tomatoes are curled at the edges, about 20 minutes.