This Seeking Tech tutorial will show you how to get the Foodie trophy and achievement guide in Metal Gear Solid Delta: Snake Eater.
To unlock this, you need to “record any food item into your Food Collection.”
To do so, grab any food item you see during gameplay. Afterwards, exit back to the menu screen and then select Extras > Food Collection.
The trophy and achievement should then pop up immediately. You can find a video walkthrough below: