My 4 year old loves pasta, so I buy her the vegetable pasta made from spinach, broccoli and carrots.
If your kids love pasta like my little girl does, you can puree almost any veggie and mix it with tomato sauce to make sure they eat their veggies at the same time. This works really great with pureed carrots. I also noticed she likes to mix salty with sweet (I've seen her dip her pasta in orange juice!), so another thing to try mixing the veggie puree with apple sauce.
I'd love to get more healthy pasta recipes from other moms. Thanks!~