From Wikipedia:
Gameplay sees the player using the touch screen to play basic mini games usually throwing something from the bottom screen onto the top (for example flipping pans of fried fish onto the plates of the servers or throwing sponges at snails to stop them from making a mess).
The game includes the cooking minigame from the DS version of the movie game where players create dishes by chopping and slicing ingredients on the bottom screen similar to the Cooking Mama series.