I apologise for being unclear. [Well. He says that, but really he thinks to himself that Leo is very tiresome for not understanding what he meant right away. Now Sebastian needs to explain it again. That's even more effort.]
What I meant was is that it is supremely dull to eat when the food is unappetising or bland, but one still needs to in order to survive. An excellent meal is the only kind I appreciate - so you see, I quite agree with you.