Feeding kittens is not a tough job but it is good to always think and decide the food for the kittens. If your kitten was eating some low quality food stuff like vegetables or groceries then it is better to continue with that for some more days and do not change the food immediately arrives the day at your house.
Sudden change may lead to stomach problems and some abdominal difficulties. Good to continue his style of food for few more days and slowly start adding the high quality food along with the usual stuff. There is some high quality food stuff available especially for feeding kittens. Look for such food products and start feeding them. After few days the kitten starts looking for the food stuff in the and eat only the high quality food stuff then that is the day when you completely change his diet since he is fond of it and has already got accustomed to it.
There is always confusion between canned food products and dry food products that are available for kittens. It is good to start with the dry foods and then switch to canned food products simply because of the convenience of feeding them. Even after starting with the canned food dry food can be given as a snack. Then after few days you can completely change his diet to canned food. Unlike cats kitten eat only based on their nutrition requirement so there is not need for feeing the kittens all the time. They know how much they need.