It's true that Cannibals prefer their food raw and it gives a +20 boost when compared against the +15 for meal based cannibalism, but it's important to remember that the nutritional value of meals is higher than that of raw food, so colonists must eat quite a bit more of any raw food to satiate their hunger.
Because meat is not a renewable resource in the same way that vegetables are, the only way to get the most out of your meat is to reserve them exclusively for fine meals. Since fine meals require an animal product and simple meals don't, it's almost pointless to waste your animal products on simple meals because you have to use twice as much and you're really just wasting a valuable resource. This is even more important for human meat which is even less readily available without huge consequences to colony mood and global faction goodwill. (Thraxon's 100% human meat simple meal is hugely wasteful)
I've found the best solution for the current lack of cannibal specific meal is to set up a separate Fine Meal bill for Cannibal use, set it to "do this many times" instead of "do until you have X" and instruct colonists to drop those meals directly on the floor, then I set the meals so colonists won't interact with them (select the meal and press F)
After that, whenever my cannibal is hungry I try to manually instruct them to eat the designated cannibal meal. It's pretty tedious, so hopefully a better solution presents itself one day.
Because meat is not a renewable resource in the same way that vegetables are, the only way to get the most out of your meat is to reserve them exclusively for fine meals. Since fine meals require an animal product and simple meals don't, it's almost pointless to waste your animal products on simple meals because you have to use twice as much and you're really just wasting a valuable resource. This is even more important for human meat which is even less readily available without huge consequences to colony mood and global faction goodwill. (Thraxon's 100% human meat simple meal is hugely wasteful)
I've found the best solution for the current lack of cannibal specific meal is to set up a separate Fine Meal bill for Cannibal use, set it to "do this many times" instead of "do until you have X" and instruct colonists to drop those meals directly on the floor, then I set the meals so colonists won't interact with them (select the meal and press F)
After that, whenever my cannibal is hungry I try to manually instruct them to eat the designated cannibal meal. It's pretty tedious, so hopefully a better solution presents itself one day.