Chill all liquids before mixing. Pour limoncello, pineapple juice, and lemonade into a large pitcher.
Stir gently to mix. Slowly pour in prosecco and club soda.
Add ice cubes and stir gently to keep the bubbles.
Garnish with pineapple and lemon slices, and top with fresh mint sprigs before serving.
Notes
Use fresh pineapple juice for best flavor. For a lighter punch, add more soda. Freeze fruit into ice cubes for a fun garnish. Serve immediately for lively bubbles.