Here is the full list of all 25 Rags to Dishes achievements.
Complete all 3 stages of the campaign
Successfully completed the Peasant stage
Successfully completed the Noble stage
Successfully completed the Royal stage
Successfully completed all tutorials
Bought 5 upgrades
Bought all Peasants upgrades
Bought all Nobles upgrades
Bought all Royals upgrades
Completed 15 daily objectives
Scared the Bird 30 times
Served 20 Knights
You cancelled an order
You served a burnt dish
You delivered an incorrect order
You let a customer leave
Successfully served 1000 customers
Served 10 consecutive happy customers
Completed a day with no angry customers
Completed a day with all happy customers
Completed a Boss round without mistakes
Earn 650 coins in a Peasants day
Earn 850 coins in a Nobles day
Earn 1500 coins in a Royals day
Fulfil 5 consecutive orders Within 5 seconds of their appearance