How many solid meals should my 7 mth old be having ?

I have a sevon month old and he is now on 3 meals a day, I just slowly increased the volume of food I gave him, and now that he is over 6 months and can eat nearly anything started giving him things that were more substantial then veg like soft cheese on bread, pasta, scrambled egg and he slowly started dropping bottles. I have found they tend to let you know when they are full up by not opening their mouths.