Here is the full list of all 12 Diner Dash trophies - there are 8 bronze, 3 silver and 1 gold.
Complete Vishnu Garden Café
Complete all four restaurants in Flo's career
Complete all four restaurants in Flo's career with all expert scores
Earn Five Stars over the course of Flo’s career (any difficulty)
Last 10 minutes in single player Endless Mode on any difficulty
Win 20 Team Dash Games with at least three other teams
Win 10 Team Dash Games!
Win 10 Online Tip Wars Games!
Win 10 Online Time Wars Games!
Win 10 1v1 Head to Head Games!
Lose all your stars in Endless Mode on any difficulty
Unlock the full version of Diner Dash®