In Morrowind, there is a needs mod (hunger, thirst, and sleep) that allows you to cook raw food to obtain more satisfaction (stats) from the food you eat. In Skyrim, cooking is built in to the vanilla game and survival needs mods take advantage of this to get better use from cooked foods than raw ones. But, I don't see any mod advantage from cooking food in Oblvion. In fact, I don't know of a mod that even recognizes cooked food from raw ingredients. Crafty Bits alllows cooking, but I don't have a Hunger mod that recognizes the difference or takes advantage of it.
Salmo the Baker has scrumptious baked goods, but other than weight, they mean no more than a chunk or two of venison or beef.
Is there a good mod for Oblivion that actually allows the player to cook up a meal or two to take adventuring and will give an advantage or buff for cooked food over raw?