I shouldn't worry to much, My Lo even now as 3 bottles a day plus 3 meals, plus snacks etc, remember his tummy is only small and will only hold a small amount of food no matter whether its your food or Jarred food,
You Lo sounds alot like how Beth used to be, She hated anything sweet, even now she wont drink any kind of juice or pop, will eat bits of chocolate and fruit was a no go, it was to sweet, she had a very savory tooth, The gagging i also got, but that was from the different texture more so than what she was eating, she would gag but yet still open her mouth for another spoonful,
At my Los age they recommend 21oz of milk on top of 3 meals, and i have just got her down to a min of 18oz with some days back upto 21oz,
The first thing i gave Beth was mash with gravy and she loved it, the texture is quiet smooth which seemed to help, she also loved brocolli and cauliflower mixed with cheese sauce, that too can be mixed to virtually nothing, I think the first finger food Beth had was a suck on a piece of beef, and there as been no going back since,
Although she as no intrest in toast or sandwiches even now x