This is a great question.
I have a 1 year old who is eating everything and anything and eating me out of house and home - lol I thought she would be the tiniest eater but she never seems to get full so I am often filling her bowl/plate at least 2-4 times a meal...same with snacks. She is never just done the first round.

As for my other kids - it depends on what we are having. Things like Spaghetti or lasagna will likely go 2 servings min for each kid because they just love it so much and keep asking for more. Sometimes I literally have to show them the pot/serving dish is totally cleared out and say ;sorry there isn't any more.' There are days where it feels like none of them are getting food at home. lol

I also wonder if I should be allowing them that many servings. I know another provider in my area gives one serving and then tells them that is all and they have to wait for snack. I am not sure I could do that and let a child cry or become upset or say they are hungry and I just say no.

I always give them more or offer another fruit or something if things get too tough. I estimated my meals for taxes at $7 a day but I am really thinking I am waaaaaay above that and the cost of food just keeps going up.