Here is the full list of all 20 Delicious - there are Emily's New Beginning achievements.
Unlock Carl by finding the mouse in every level
Unlock the ducks by collecting every other person
Unlock Edward by ??????? (Hint: “Knock Knock”)
Unlock Julie, the Violinist, by buying all shop items in all restaurants
Unlock Angela by achieving three stars on all days
Unlock Dainton Wu by finishing the fifth restaurant
Unlock Snuggy & Rosie by collecting all the Memorable Moments
Unlock Richard by finishing the fourth restaurant
Unlock Elvis by using your register one thousand times
Unlock Kate by finding all hidden objects in the game
Unlock Patrick by finishing the third restaurant
Unlock Antonio by finishing the second restaurant
Unlock Francois by finishing the first restaurant
Unlock the Soccer Moms by letting Emily walk 9 miles
Unlock Sid, the Cleaner by burning ten dishes and still completing the day with three stars
Unlock Jimmy by collecting one thousand silver coins
Unlock Evelyn by cleaning a table while customers are waiting for it
Unlock the Foodies by getting a 3-customer bonus two times in a row
Unlock Emily by collecting ten thousand silver coins
Unlock Brigid by playing with every single product in the game