这里的“敢说”的“敢”字翻不翻两可,不是很关键.有几种译法：
If he dare say the meal I've prepared isn't good/delicious,I won't cook for him any more.
If he is courageous enough to say the meal I've prepared isn't good/delicious,I won't cook for him any more.
If he says the meal I've prepared isn't good/delicious,I won't cook for him any more.