All Kevin levels in this game (main game and DLCs) involve cooking steamed fish and dumplings. Generally, dumplings are more expensive than steamed fish, but they require more work. This level can be unlocked by serving 2 dishes in a row in Level 1-3, which is definitely easy (if you watched my videos). Watch this video on how to obtain 4 stars for level 1-3:
• Overcooked 2 - Level 1...
This level seems easy, but the hidden difficulty comes from balancing the work between cutting, mixing, cooking and washing dishes. Cook by batches of 2, but make sure you have clean plates. Whenever possible, cut the ingredients for the next batch.
Hope you enjoy this video! Mister Fudo signing off!