Solids

My LO just turned 5 months and he is showing all of the cues of wanting to start solids. So we made homemade sweet potato puree with rosemary. Everything I read says he should start off at about 1-2 tablespoons once per day. But the 1st time he ate he just kept wanting more. Ended up eating around 2oz before i switched him to a bottle. Should i let him eat more if he wants it? And what about more than once per day?