In blender, place remaining 3/4 cup (175 mL) yogurt, spinach and apple juice. Cover; blend until smooth. When first layer is frozen, remove foil from pops. Pour about 1 1/2 tablespoons spinach mixture in each cup over frozen layer. Put remaining mixture in bowl; cover and refrigerate. Return foil to pops to support sticks. Freeze about 2 hours or until frozen.