Stranger Things 3: The Game

In the Town Hall in Hawkins Square is a man who wants you to craft him a pizza made entirely of fish.

Sardine: Hawkins Lab Basement. Erica required. Crawl through the vent, then pull all three levers, then pull the red lever again. This opens the top room. Fight off the enemies and pick up the fish.
Mackerel: Hawkins Community Pool, in the women's locker room showers.
Tuna: Weathertop, in the western-most corner. You probably already got this when you were looking for Cerebro parts in Chapter 1.
Salmon: Secret Russian Base, in the room with the vending machine.
Dough: Back room of Pan-O-Rama. This area won't open up until you accept this sidequest.

Once you've found all the ingredients, bring them back to Anton at Town Hall. Talk to him for some money and this trophy.