Italian Bite-Size Taco Calazones

1/2 lb ground beef
1/4 cup taco sauce
1-1/2 to 2 teaspoons chili powder
1/4 teaspoon onion powder
1/4 teaspoon garlic powder
1 (10 oz) package refrigerated pizza dough
1/4 cup shredded American or cheddar cheese (1 oz)
1 egg
For filling, in a small skillet cook ground beef till brown. Drain off fat. Stir in taco sauce, chili powder, onion powder, and garlic powder. Set aside. Unroll pizza dough. Stretch or roll dough into a 14×10-1/2 inch rectangle. Cut into 12 3-1/2 inch squares. Divide filling among dough squares. Sprinkle with cheese. brush edges with water. Lift one corner of each square and stretch dough over to the opposite corner, making a triangle. Press edges well with a fork to seal. Arrange on a greased baking sheet. Prick with a fork. Combine egg and 1 teaspoon of water; brush onto calzones. Bake in a 425 deg. oven for 8 to 10 minutes. Let stand for 5 minutes before serving. Makes 12 mini calzones.