To begin with log in to the Facebook application with the same login credentials as used in the game previously.
Once logged in, if you are playing Star Chef 2 on Facebook Gaming for the very first time then you can search for “Star Chef 2” listed under the Play games section on Facebook or simply search for “Star Chef 2” in the search field. As a returning player, you will find Star Chef 2 game tile under the “Recent Activity” sections of the game. Tapping on Star Chef 2 will open the game on your device. ( see reference screenshots below)
If your game was linked to the same Facebook account then you will be able to continue from the last saved progress. If not then you can start a new game.
Please note, currently, the game is available in selective US regions only.