Hi K.,
He seems to be craving carbs. Two things that are easy at this age to start taking a look at the digestive health (yes, lots of kids are struggling with digestive and it starts even earlier than 10 months).
First, change his crackers, bread, buscuits to only gluten free ones. Don't be a wus and give in, it will only get worse. Mom needs to be in control of the food. Baby food should be all organic. Do not touch the meat in baby food. If you want meat, cook it and puree it yourself or give him the tiny pieces. This is a tough one, but if you can get him off the formula onto a almond milk and cod liver oil mixture (8 oz almond milk, 1 tbls cod liver oil), it would be amazing, if not, when you transition from formula to milk, go to Almond or Rice, not cows milk.
Why I suggest this is that gluten breaks down to sugar (unless you are feeding him Ezekial bread or bread made from the whole husks - which I guarentee is not what he wants). The sugar feeds yeast - which is a biproduct of a unhealthy digestive organ. This can be changed - rapidly at this age - much harder later. Also, organic is the best way (although not perfect) to get rid of Genetically altered foods which have been studied to cause inflammation in the gut (which creates more areas for yeast to grow). Lastly, 70% of the world is intolerant to milk. Intolerance again creates inflammation. Yeast, by the way, has the side effect of gas and digestive pain, which is why kids don't really want to eat anything but the quick fix it food - aren't they already SO SMART!!!
Secondly, by adding proibotics (1-2 capsules emptied in his bottle/cup) you will help restore the balence in the gut. If you have a physician that will work with you (Even though they try to deny most of these things), you could get Nystatin, which is a prescription anti-fungal to reduce the yeast followed by good proibotics for some time.
Thirdly, you could have him chew a little Zyme Prime enzyme (or crush it on top of his food. Tastes like candy and will give him the needed enzymes to digest and not cause gas - which is why he has altered his thoughts on food.
Nothing is better than seeing a child heartily eat. Forget the fact it feeds the brain, causes the nervous system to develop properly, etc - it is just a JOY as a mom to see them eating and enjoying. I remember the day both mine were enjoying and completing their foods (they were 7 and 2 by this time). It was so wonderful and I never realized how sad it made me to argue with them over eating.
Best of luck, hope you will try it and get the results everyone who sticks to it gets, J.