Combine flour and salt; cut in shortening with a pastry blender until mixture resembles coarse meal. Stir in cheese. Sprinkle cold water evenly over surface, stirring with a fork until all dry ingredients are moistened.
Shape dough into 10 balls. Roll to 1/4-inch thickness, and fit into ten 3-inch tart pans. Bake at 425° for 10 minutes or until golden brown. Gently remove pastry shells from pans; set aside to cool before filling.