Here is the full list of all 12 Burger Joint achievements.
Survive 6 months without being investigated
Beat the game without selling a single joint
Beat the game with 4 or more gang members in jail
Beat the game with all 4 heists successfully completed
Beat the game with a 5 star rating
Earn over $1000 from gumball and crane machines in a single playthrough
Have at least one of each decoration in your restaurant
Have 15 or more pots placed in your operation at once
Have at least one of each ingredient placed in your restaurant
Successfully rob the bank twice in a single playthrough
Beat the game on hard difficulty
Beat the game on hard difficulty with a 5 star rating