Pulse first 4 ingredients in a food processor 4 or 5 times or until dry ingredients are thoroughly combined.
Add shredded cheese and shortening, and pulse 4 or 5 times or until mixture is crumbly. With processor running, gradually add milk, and process until dough forms a ball and leaves sides of bowl.
Turn dough out onto a lightly floured surface; shape into a ball.
Pat or roll dough to 1/2-inch thickness; cut with a 2-inch round cutter, and place on baking sheets.
Bake biscuits in 2 batches at 425° for 10 minutes or until golden.