I chuckle every time I think of the hours I spent pulling plantain. So much easier to eat it!
Plantain is a common Missouri weed, found in most disturbed lots and road sides. I happen to have a nice crop of plantain in the center of one of my gravel driveways, which makes picking it very convenient. No need to write down a recipe, use as you would lettuce.
Make sure the area hasn't been exposed to chemicals and pick younger leaves. Reminds me of spinach so I'm going to steam it next and see how it tastes.