Hmm. Maybe you can still try to give him less milk at 9+, cereals at 10+ then see if he will still get hungry at 12+. As, with cereals, baby maybe less hungry earlier.
If he's alright, then you don't have to give him the 3 oz of milk at 12+ and can give him full lunch at 1+. Starts this on weekend when you are around.
Otherwise, the other way is to try to wake him up earlier or feed him earlier though he's still sleeping. Some baby can still drink milk when they are sleeping, some cannot. My girl cannot.
If he's alright, then you don't have to give him the 3 oz of milk at 12+ and can give him full lunch at 1+. Starts this on weekend when you are around.
Otherwise, the other way is to try to wake him up earlier or feed him earlier though he's still sleeping. Some baby can still drink milk when they are sleeping, some cannot. My girl cannot.