Pikmin Stew

Pikmin Stew refers to when Kirby uses his Final Smash and Olimar is in the fight. If Olimar is in the range of the Fianl Smash, his Pikmin will be sucked into the pot. Olimar can then use Pikmin Pluck to keep adding more Pikmin until the amount of items the pot can take in is full. Kirby will then do his Final Smash and a lot of items will appear on stage. Olimar can also use this to avoid getting caught in the Final Smash.

"Pikmin Classification"
The reason this works is because Pikmin are considered "items" by the game.

Trivia
This is oddly familiar becuase in the Pikmin games, the Pikmin could be eaten in large amounts at a time. Kirby is doing the same thing and cooking a lot of Pikmin into items(often edible).