I will say this a million times and you can choose whether to believe me BUT one way to get you kids into eating healthy foods is to get them involved. A fantastic way to do this is by having a garden. Involve them in the fun from the get go and also teach them lessons about being accountable.
The kids helped choose all of the herbs, vegetables and fruits, plant them, weed, water, harvest etc. So far we have only eaten one cucumber but it was a thrill and every day they look forward to looking for raspberries (they never make it into the house as they eat them) and to see if the tomatoes have turned orange yet.
I have also taught the kids about accountability today as I showed them how overgrown the cilantro was and how some of the leaves on the bottom are all yucky because mommy neglected her herbs this past week. They saw how much more work I had to do to trim them, pick weeds etc. and noted 'you need to do a better job mom'. Well said.