Here is the full list of all 21 Delicious - there are Emily's Home Sweet Home achievements.
You have Chosen every product in every environment at least once.
Finished all the Challenges and Bonus Levels.
Bought all items in all restaurants.
Bought all items in the house.
Unlocked every photo-moment.
Unlocked all products.
Unlocked and Collected Everything.
Walked 100 miles.
Achieved 3 stars on each day.
Finished Emily's Place.
Found all 60 mice.
Finished the Ski-hut.
Finished the Farmers Market.
Finished Happy Funtime Land.
Entertained a table 100 times.
Served 500 drinks.
Finished Talon Lake.
Served 250 products quickly.
Watched the entire credits.
Finished the Garden.
Had an order on your tray before it was ordered.