We had to start early too for the same reason. What we did was space the milk feed 4 hours apart and cereal was 1 hour later. For example, our LO woke in the morning and we gave him a bottle, then 1 hour later we fed him cereal. We then did this after the afternoon bottle for lunch (or maybe mid - morning?). The only time it wasn't that way for us was for his "dinner" feeding. There was more space, since he had a bottle at day care and then had his dinner with us and then his bottle before bed.