1Heat oven to 450°F. In 10-inch skillet, cook beef and onion over medium-high heat, stirring occasionally, until beef is thoroughly cooked; drain. Reduce heat to medium. Stir in ketchup, pickle and pepper; cook 2 to 3 minutes or until thoroughly heated.
2In ungreased 9-inch glass pie plate, spread beef mixture. Sprinkle with cheese. Unroll pie crust over hot beef mixture. Seal edge and flute. Cut slits in several places in top crust.
3Bake 13 to 20 minutes or until crust is golden brown and filling is bubbly. During last 10 minutes of baking, cover crust edge with strips of foil to prevent excessive browning.