Dough
Ingredients
- 2 cups all-purpose flour
- 1 teaspoon kosher salt
- 1½ sticks chilled, unsalted butter, cut into pieces
- ¼ cup ice water (or more, as needed)
Instructions
Put the flour, butter, and salt into a food processor and pulse to combine. Mixture should resemble course meal with a few butter chunks remaining. Transfer mixture to a bowl and drizzle in ¼ cup ice water. Mix with a fork, adding more ice water by the tablespoon as necessary, just until the dough comes together. Lightly knead the dough until there are no more dry spots, but do not overwork. Wrap the dough in plastic and chill for at least two hours.

Filling
Ingredients
- 1 zucchini, cut into ¼-inch discs
- 1 yellow squash, cut into ¼-inch discs
- 1 tablespoon fresh thyme, finely chopped
- 2 teaspoons fresh rosemary, finely chopped
- Salt and pepper
- ½ pint cherry tomatoes, halved
- 1 tablespoon olive oil
- ¾ cup ricotta cheese
- 1 teaspoon fresh lemon zest
- ½ cup shredded Parmesan cheese
- 1 large egg, beaten
- Flour for dusting
Instructions
Preheat oven to 400 degrees. Line two baking sheets with parchment paper and lightly grease. Place the zucchini and yellow squash coins on one pan and sprinkle with half of the thyme, rosemary, salt, and pepper. Roast the squash until tender, seven to ten minutes. Remove and let cool. Toss the tomatoes with the olive oil, salt, and pepper, and put face up on the other baking sheet. Roast in the oven until lightly browned, 15 to 20 minutes. Remove and let cool.
Assembly
Roll out the dough on a lightly floured surface to about a 12-inch diameter round and about 1/8-inch thick.
Combine the ricotta and lemon zest, and spread the mixture over the galette, leaving a 1-inch bare strip along the edge of the dough. Shingle the zucchini and squash over the ricotta, then scatter the tomatoes over the squash. Sprinkle the Parmesan and remaining thyme and rosemary over the galette. Bring the edges of the dough up and over the filling, overlapping as needed, to create a border of about 1½ inches.
Brush the edges with the egg wash, and bake until golden brown, about 15 to 20 minutes or until edges are golden brown. Remove galette from oven and let cool for five to ten minutes on a cooking rack. Cut galette into desired pieces and serve.