Hi J....
I am new to this site and you are my first response! I have a 6 month old who also suffers from acid reflux...our pediatrician started her on Prevacid when she was 3 months old and it certainly helped. In terms of the cereal..we started her on rice mixed with formula and water to a pancake batter consistency..not too thick. Of course, more of the rice made it on her bib than in her mouth, but we wanted to get her used to the spoon. We switched over to oatmeal only in the morning at 5 months and with practice and consistency she is taking the spoon and pretty much gets the concept. Our doctor advised us to start her on only yellow and orange veggies 2x day (squash, sweet potatoes and carrots). The next stage we started her on green veggies at about 6 months and then we will start her on fruits by the next pediatrician visit.
Our doctor advised us not to start her on fruits first because she will obviously like the fruits over the veggies...
I never put the cereal in her bottle, because I wanted to get her used to the concept of me feeding her with a spoon. So far it has worked. I give her the veggies for lunch and dinner and I will start her on fruits soon.
I am a first time mom too and it has been so exasperating...you want to make sure she gets enought to eat! I am sure you will receive lots of different advice....you will find what works best for you and your child. Take care!!