Roasted Squash And Mushroom Tarts

Name: Roasted Squash And Mushroom Tarts
Ingredients: 2 cups all-purpose flour; 1 teaspoon salt; 2 tablespoons sunflower seeds; 1 tablespoon poppy seeds; 1/2 teaspoon fresh cracked black pepper; 1 large egg; 1 large egg white; 1/4 cup cold water; 1/4 cup olive oil; 1 small acorn squash; 1 medium yellow onion; 1 clove garlic; 2 big handfuls cremini mushrooms, cleaned and sliced; 2 tablespoons olive oil; salt and pepper; 1 teaspoon ground cumin; 1/2 teaspoon garam masala (optional); 1 large egg, beaten in a small bow for egg wash