To Make Ahead and Freeze: After placing unbaked pies in muffin cups, wrap muffin pan in foil, and freeze completely, about 2 hours. Once pies are frozen, run knife around edge of pan to loosen; remove from muffin tin. Wrap each in plastic wrap, and place frozen pies in large resealable freezer plastic bag. To bake: Heat oven to 375°F. Remove desired number of frozen pies from bag, and place in sprayed muffin cups or ramekins on cookie sheet. Loosely tent with foil that has been sprayed with cooking spray; bake 20 minutes. Remove foil; bake 20 to 24 minutes longer or until filling is bubbly and crust is light golden brown. Cool 5 minutes; carefully run knife around edge of pie to loosen.