You don't have too cook for me--你也不用为我做饭 You don't have to if you don't want to--不想做就不做

Well, this is probably the Chinese type English, ha ha

Another way to say "you don't have to" is 你不用 You don't have to cook for me --> 你不用為我煮飯。 You don't have to if you don't want to --> 你不要的話，就不用了(就不用這麼做)。

You don't have too cook for me. 你不需要為我煮飯 You don't have to if you don't want too 如果你不想要的話，你不需要這麼做。

in Chinese "don't" depends on the verb therefore there will not be one version for all "don't have" cases