My daughter, who is now 16m 2wk, was still eating primarily baby food at 13-14mo. She only had two teeth at that point and the only things I felt comfortable giving her were the soft Gerber Graduates carrots. I tried the green beans, but she had such an issue with gas, that those made it worse, plus she was having difficulty with digesting milk, so most dairy products were out. I slowly added in peas and other bite-sized fingers foods, like cut up bananas and tofu. She mostly eats finger foods now, but I still give her rice cereal and the occassional baby food of fruits or vegetables. I mean, really, the baby "apples" are just applesause with no added sugar, so it seems like an ok thing to feed her. I wouldn't worry about her not wanting table foods, as my daughter wants to try whatever we're having... that's how she got started with eggs... having some from mommy's plate in the morning.
My daughter didn't seem to like the texture of most adult foods the first couple of times she tried them, but I had read that you might have to give them something 10-12 times before they would accept, so I just kept offering her stuff (I probably would have assumed that she just didn't like it after the second try if I hadn't read that). Most things only seem to take about 4-5 tries with her and it seems to help to space out the tries... like a few days between when she rejects something before I try it again. And, again, it generally helps if I'm eating it or daddy's eating it, then she at least wants to try it.
I wouldn't worry. He'll start eating other things soon enough.