Kṛṣṇa, Who, being God, could eat anything, He has chosen these particular things to eat because out of all the different tastes they are the most developed and refined. So it is a nice direction to go towards. But I would say more important is to learn how to cook.

So the spiritual master is satisfied when he sees devotees eating Bhagavat-prasad, so this is one of the ornaments of a devotee, as he advances he is happy to see others eat. So those who become happy in seeing others eat or at least who are in a positive mood