Here is the full list of all 17 Cook Serve Forever achievements.
Finished a day in the Church of the Sun God.
Dishin' Justice.
Yes, uh, tranquillitas.
Earn a holographic location sticker.
Get 14 or more XP tokens in a single day.
Earn a location sticker.
Reach LV5 in any location.
Thanks mom. <3
Another shift complete in Moraine.
Earn three location stickers.
Earn ten location stickers.
Earn five holographic location stickers.
Earn all location stickers in West Helianthus.
Earn the Shrine of Rhubarb holographic sticker.
Finished a day in the Helianthus Public Library.
Finished a day at the Sunset Meadow.