Monster Hunter World tips: RNG Roasts
The Oven Roast ability can be found at the Canteen. Within the Oven Roast menu, you can tell the Handler which ingredients you want her to Oven Roast, gaining a randomised reward as a result of the roasting. You can select basically any food-related item, such as mushrooms and meat, and you’ll be able to collect your rewards from the Oven Roast from the Canteen once you’ve returned from the next quest/expedition that you undertake. Possible results from roasting ( source ):