Place 1-1/2 cups of the chopped peaches in a food processor bowl or blender container with the yogurt and honey. Cover and process or blend until smooth. (If using blender, blend a small amount at a time and do not overblend.) Stir in remaining chopped peaches. Pour into a 2-quart pan. Cover and freeze for 4 hours or until firm.
Break the frozen mixture into small pieces and place in a chilled mixer bowl; beat with an electric mixer on medium speed until fluffy, starting slowly and gradually increasing the speed. Return mixture to pan and freeze, covered, for 6 hours or until firm.
Let frozen yogurt stand at room temperature for 10 to 20 minutes before serving. Makes 12 (1/2-cup servings).