In a large mixing bowl, combine the drained fruit cocktail, thawed whipped topping, mini marshmallows, shredded coconut, and chopped pecans (if using).
Gently fold all ingredients together until well combined.
Stir in lemon juice for a hint of brightness.
Cover and refrigerate for at least 1 hour before serving to allow flavors to meld.
Notes
Best served chilled. Can be made ahead and stored in the refrigerator for up to 3 days.