In a mixing bowl, combine flour, sugar, and salt. Cut in butter until mixture resembles coarse crumbs. Stir in ice water until dough forms.

Divide dough in half, shape into discs, wrap in plastic, and refrigerate for at least 1 hour.

In a large bowl, combine sliced peaches, sugar, cornstarch, cinnamon, and lemon juice. Toss to coat evenly.

Preheat oven to 375°F (190°C). Roll out one disc of dough and fit into the baking dish. Fill with peach mixture.

Roll out the second disc of dough and place over the filling. Cut slits for steam to escape. Bake for 45 minutes or until golden brown.