As you progress through the Monster Hunter World main quest, be sure to chat with people with a yellow exclamation mark on their head when you return to Astera. This is particularly the case of the Meowth Cook behind the kitchen who will give you many execution and harvest missions. The secondary quest: Failure and materials (★★★★★) will allow you to recover a new ingredient in the Canteen (picture1).
After accepting this mission, go to the camp located in Area 11 of the Putrid Vale. Then, move to Area 13 where the piece of meat to be recovered is located (picture2). Tip: kill the Girros on your way to avoid being bothered during the delivery (picture3). Follow the path with the meat to the camp chest twice in a row to complete this mission (picture4).