Here is the full list of all 26 PlateUp! achievements.
Complete a day when the restaurant has been on fire for more than 15 seconds
Have the first group to arrive still be waiting to order when the day ends
Convey an item back to where it started
Create a franchise
Serve a burger to a customer
Serve a salad to a customer
Activate Practice Mode during preparation time
Complete a day with a mess on at least 10 tiles
Serve a steak to a customer
Serve a stir fry to a customer
Serve a pizza to a customer
Serve a pie to a customer
Serve a fish to a customer
Serve a hotdog to a customer
Serve a breakfast to a customer
Complete a day with 10 appliances on fire at once
Serve a customer with less than a second to spare
Set a customer on fire
Cook something on a Danger Hob with an activated Gas Safety Override
Wear Trainers while holding a Sharp Knife
Reach Overtime Day 5
Reach Overtime Day 10
Reach Overtime Day 15
Throw away a cooked fish in the tutorial
Complete a day without anyone serving a customer directly
Complete a day without any player leaving the tile they started on