Step 1

Position racks in upper and lower thirds of oven; preheat to 475 degrees F. Coat 2 baking sheets with cooking spray.

Step 2

Heat 1 tablespoon oil in a large skillet over medium-high heat. Add beef, onion and potato; cook, breaking up the meat and stirring occasionally, until the beef is no longer pink and the potato is tender, about 7 minutes. Stir in peas, garlic, garam masala, 1 teaspoon curry powder and salt; cook, stirring, for 1 minute. Stir in tomato sauce and remove from heat.

Step 3

On a lightly floured surface, divide dough into 6 pieces. Roll out one piece into an 8-inch circle. Transfer to a prepared pan. Place a generous 1/2 cup filling on one half of the circle, leaving a 1-inch border. Sprinkle with 2 tablespoons cheese. Brush the border with water and fold the top half over the filling. Fold the edges over and crimp with a fork to seal. Make several small slits in the top to vent steam. Repeat with the remaining dough and filling. Mix the remaining 1 tablespoon oil and 1/4 teaspoon curry powder in a small bowl and brush on the pies.

Step 4

Bake the pies, switching the pans halfway through, until browned on top, about 15 minutes. Let cool slightly before serving.