The Campfire Cook Off Add-on for Overcooked! 2 has 7 achievements worth 500 gamerscore.
Get 3 stars on all Campfire Cook Off levels
Deliver every type of meal in Campfire Cook Off
Get 3 stars on every level in Campfire Cook Off World 1
Get 3 stars on every level in Campfire Cook Off World 2
Get 3 stars on every level in Campfire Cook Off World 3
Burn 300 pieces of wood
Take 500 items from backpacks