I have been making my own baby food and this week has been sweet potato. Since I'm making it myself…

I have been making my own baby food and this week has been sweet potato. Since I'm making it myself I have no idea what a usual serving size is. I have been feeding Phillip half a cup of puréed sweet potato, which seems like so much since I have been reading to start out with a tablespoon and move on from there. Phillip has been eating the half a cup with no problem and I really think he could eat more if I served it to him! He gives me no clues that he is full and would happily open his mouth for another bite of it was there. I guess my question would be is there such thing as over feeding? I know with breastfeeding you should let them eat until they give you clues that they are full. Is it the same with solid food?