Here's how I used to feed my daughter when she was about that age:
Breakfast - cereal or yogurt and nursing
Morning snack - piece of banana, mushed
Lunch - 1 jar of babyfood (usually a veggie)or a home prepared veggie like avacado, sweet potato, broccoli etc., nursing
Afternoon snack - gerber puffs or cheerios with a bit of juice or water (4oz or so)
Dinner - 1 jar of babyfood or cereal (depending if she had cereal for breakfast), a bit of whatever veggie or soft food such as noodles we had for dinner, nursing
Bedtime snack - another nursing before bed.
Remember that food before a year old is mainly practice and he will get better at eating, no need to rush. Once he is a year old then food will be a more important part of his diet, but for now breastmilk or formula is what he needs most, along with cereal (1-2 servings a day).
At eight months old my daughter had barely learned to self feed but wasn't yet ready for the greenbeans and carrot pieces that she eats now. What she had at the time was mostly avacado, sweet potato with pumpkin spices, and very very very soft broccoli (steam the heck out of it lol) along with babyfood jars. As she got better at self feeding and chewing i'd give her bigger chunks of those things and eventually at around 11 months or so she was ready to eat whatever we were eating provided it was soft enough for her to "chew" with the four front teeth she had. It sounds like you are doing well, you'll know when your child is ready for chunkier food.
I do think though that instead of giving him cereal plus 1-2 jars of babyfood at night you should really be giving him three "meals". Sometimes I would get two jars, one of meat and veggies and another of fruit and let her sample some of both and save the rest for later. I think 2 jars of babyfood plus cereal is a lot of food for such a little one. A serving size is one jar if you look at it. Oh and by now he should be eating either stage 2 or 3,they are much bigger servings, so if you are still giving stage 1 then you need to move on once he wants more than that little jar. Also, as the other posters said, he doesn't need teeth to "chew", you'd be suprised at what your little guy can eat, just give tiny pieces and give him whatever he wants to try. Good luck!