In a large mixing bowl, stir together the cherry pie filling and sweetened condensed milk until smooth.

Add the drained crushed pineapple and chopped pecans, mixing until evenly distributed.

Gently fold in the thawed whipped topping until no white streaks remain.

Fold in the miniature marshmallows.

Cover and refrigerate for a minimum of 2 hours to allow the flavors to meld and the marshmallows to soften slightly before serving.