Feeding schedule

Mone
My baby will be 6 months in 2 weeks. Every time I eat he opens his mouth and grabs it out my hand! He was sleeping from 7pm to 630 am but now wakes at 4am to eat then back down until 7am. This morning at 9am I gave him 4 baby spoons of squash. He opened wide and I guess I wasnt feeding him fast enough because he was grabbing the bowl for more lol. For those of you who have older kids or already started baby on solids what's your schedule like? I've been giving him 6 oz if formula from 7 am to 7pm every 3 hr. Since he wants food at 4 am and that makes it exceed 32 oz I figure its time. He's been sitting up unassisted for 1 week and everything. Thanks!