In medium bowl, beat milk and pudding mix 2 minutes with electric mixer at medium speed or 2 to 3 minutes with wire whisk until well blended. Stir in lemon peel. Refrigerate.
Allow 1 pie crust pouch to stand at room temperature 15 to 20 minutes. (Refrigerate remaining crust for another use.)
Heat oven to 450°F. Remove pie crust from pouch. Using rolling pin, roll crust to 15-inch diameter. With lightly floured 3-inch round cutter, cut 16 rounds from crust; discard scraps. Fit rounds into 16 (2 3/4-inch) ungreased muffin cups, pressing in gently. Generously prick crusts with fork. Bake 5 to 7 minutes or until very light golden brown. Remove from pan; cool completely.
Spoon lemon filling into tart shells. Garnish with sliced fruit and mint leaves. If desired, sprinkle with powdered sugar.