my ds is also 7 1/2 months old and i just kinda go with the flow with him. he eats three meals of, i think, substantial amount. i think breastmilk and/or formula is still his most important meal, so as long as he gets his share of that i don't sweat the solids. i keep going as long as he seems interested and stop when he takes a long time to open his mouth or turns away or swats at the spoon. he eats cereal with fruit in the morning, veggies and fruit for lunch and dinner and also rice cakes, baby crackers (rice rusks) if i have him in the chair and his meal isn't ready yet or he's done but we're not. so, just make sure he gets his fluid meals and then take your lo's cues. have fun...