Here is the full list of all 15 Chop is dish achievements.
Pass 3 location
Kill 10 enemies with Molotov cocktail
Kill 20 enemies with a knife
Kill 30 enemies with your rifle
Pass 2 location
Collect 100 pieces of meat
Crush 100 enemies
Find 1 mask
Find a sandwich
Find 2 mask
Find 4 mask
Pass 1 location
Undergo training
Find 3 mask
To switch the language