Please excuse all of my food related threads recently. I feel so clueless now that he's almost a toddler!

I am currently very lucky, because LO eats everything I put in front of him. He cleans his tray every night, though I realize that may change in the coming months! His eagerness to eat makes me wonder if I'm not feeding him enough? Do you feed your toddler until they're no longer interested in eating? Or, do you have a set portion size that you give them for each meal?