Here is the full list of all 11 Dead Hungry Diner achievements.
Serve 100 customers
Score 10 stars in a single game
Serve 4000 customers
Serve 8000 customers
50 customers left without paying
Score 100 stars in a single game
Score 150 stars in a single game
Finish game to end
Finish game on hardest level
Earn 1.000.000 gold
Earn 1000 stars