Peel and slice peaches. Mix in sugar, lemon juice and flour. Pour mixture into a 9 by 13-inch pan. Cut pie crust to fit over peaches, using extra pieces to make designs such as leaves and stars. Sprinkle sugar over crust and bake in a preheated 350 degree oven for 30 to 35 minutes or until golden brown. Serve with vanilla ice cream or whipped cream.