create a paste with them. more than lolely they will play with them but ecentually eat them. also try messy play and throw some in there is a good chance as its not kn a meal plate they will pick it up and eat it
blitzing it into a pasta sauce with a tomato base tends to be one of our staples of getting a huge dose of veg in.
soups are always another hit, although not always subtle, they can be tailored to suit a load of tastes.
Roasting is another options, tends to bring out the sweetness in root veg and could be a winner?
Or just cut it up and offer it up raw with some dips?