with chris on how to educate them to grow healthy food options they can take home. 18 years ago, mischa is not only learn black kale is, but also how to cook it. >> the you know what i tried last night with the kale? i didn't blanch it, but i put a little bit of hoy sin source in it. >> reporter: the exposure to new recipes has changed her outlook on food. >> i eat more healthy and less junk and it is really helping me with my diet and blood pressure. >> reporter: whether it is the change in her or the change in the neighborhood, many say it is chris' harmonious attitude that has made the difference. >> he just cares so much about this neighborhood and about this community and really creating a safe space for kids to be in. >> reporter: bill martin, ktvu, channel 2 news. >> he is one of cox con sevens heroes being profiled this week. they're all working for environmental improvements in their communities, and you can vote for your favorite by going to ktvu.com. just scroll halfway down the home page. >>> oakland's park is a busy place today. the volunteers from caser permanente held the