What I would do was to boil all the nutrients out of them, or even add fats/proteins to them by boiling them in chicken stock (sounds terrible, doesn't it?).
What it did though, was make them mushy enough that they could be swallowed safely, and accustomed him to the taste. (Most kids have a gag reflex that starts with all previously untasted foods around 24 months and lasts until they're 5/6 years -all "new" foods introduced then are "yucky" for the next 10-30 years...introduce AS MANY flavors as possible before that time!!!) This is the age group you'll see people complaining about picky eaters...and also when most people in this country START introducing new flavors. Oops...backwards. Avoid bland old baby food and go on a culinary explore. Pick an ethnicity and GO for it, letting her try everything, before it's too late.
Anyhow, I boiled the heck out of all the veggies in the beginning, and then slowly started boiling them less and less until it was just a light steam to get the flourescent color thing that happens :) My son was probably 4 before he actually was eating raw/crisp veggies. But we never hid their flavor, just gradually started cooking fewer of the nutrients out.
Veggies in soups, though, are FANTASTIC. Because they super soft, but the vast majority of the nutrients are actually IN the soup. From campbells chunky, to homemade. Soups are a stellar intro to veggies.
If you're freaked about boiling all the nutrients out of them, you CAN use the veggie water in other cooking (like adding some to mashed potatoes/etc.) Most of the delicate ones died a gruesome death via the heat (although some stubborn ones we don't even get unless there's heat applied). So it's a choice. Neither fantastic nor awful on either side.
R.
And here's a poem my grandfather used to tell me all the time. Just popped into my mind as I was reading, so I figured I'd share:
"I eat my peas with honey,
I've done it all my life.
It does taste rather funny,
But it keeps them on my knife!"