The other day I was in the grocery store, buying my normal stuff: bananas, apples, grapes, squash. I also like to buy some of the vegetables that have already been chopped up, something that Trader Joe's and Whole Foods began as a practice.
One way to accomplish this would be to join a CSA (Community Supported Agriculture) Club near home and enjoy new and healthy foods weekly during the growing season.
A CSA works this way: A group of people purchase a "share" (also called a membership or subscription) and receive a weekly basket of fresh vegetables and fruits, along with bread, eggs and meat depending on the farm. Costs for the memberships vary, depending on how many pounds of produce you want delivered each week.
To learn more, search on the internet for "CSA clubs (your town)".
Bring on the kale, and mustard greens and the spinach!