I have the same issues. My little guy eats over that amount to and can sometimes eat 5-7 ounces a feed. He doesnt sleep at night and eats same amount every few hours in the night hours. He was diagnosed with GERD and I was told to keep feeding him less amounts, like 3-4 ounces every couple hours instead to make sure he is getting what he needs. We have started Bryce on cereal to, actually yesturday was his frist day. He isnt even 3 months old yet, 22nd he will be. He weighs over 14 pounds now, and he was 8 8 at birth. Our little men are big boys for sure. If you think he can handle the cereal i would try him on runny mushy kind first and give little bit at a time, a teaspoon to start.Or you could put 1.5 teaspoon in his formula, make sure the formula is about 4 ounces then mix it in. He may like it like that, Bryce does. Its trial and error to see if he will be full tho. Some babies just digest faster I was told. Ugh, fun fun...