Melperimeter my middle son is Autistic too, he used to eat anything but as he got to age two he changed and got really thin, refusing everything except pasta. Now I try him with as much stuff as I can, if he leaves it I make him something else, something I've never done with my other two.
All three of my boys were breast-fed and the younger two ate almost all homecooked food, pureed veg, a little chicken or fish or cheese, pasta. Being a fat mum I take pride that my oldest son bodybuilds, he's 6'1" and 180lbs, ~I refused to give my children bad eating habits, none of them have decayed teeth or fillings either and the oldest is 19!!!
I think it is important right at the beginning to give children as wide a variety of tastes as possible, not forcing stuff on them but encouraging them to 'try'.
I wish my mum had not gotten me into chocolate & potato products!!!
xxsharon

I'm lucky because my kids eat their veggies. And they have been very supportive in changing our eating habits and haven't fussed at all because I'm no longer bringing junk into the house. The hard thing for me is to remember which kid likes which veggies, because they are different. But they will eat them, even if not their favorites. The only thing my son refused was squash. But he substituted spinach, LOL!

This next statement isn't true for all, nothing every is, but I noticed a trend. MOST of the females really liked veggies and most of the boys did not. Mine like a few and some I hide. I also noticed my husband doesn't have a good attitude towards veggies and that I think affects them. I do try to serve as many as they like and add a new one once in a while and insist they try it. I also ask them (when they get in the mood of saying veggies are yuck) to list all the veggies they do like (that gives me a hint and reminds them that thier attitude is not reflected by reality). I have gotten good at hiding a lot of stuff. I laughed because I do the carrots in spaghetti too! My 7 year old isn't savvy enough to figure out what tomato based sauce is made from. He claims he hates tomatoes but when I mixed diced (not stewed) tomatoes in these sauces he NEVER notices it. The rest of us are like "duh" but we don't say anything.