Sorry, the photo is too small. We would need to be able to see a closeup of the leaf to have a chance at identifying.
It's a weed
It is a weed. Don't eat it. There are some toxic plants in the parsley family. She got the right family of plants though!
Oh, I'll have to tell her, she'll be happy about that- she's been planting a small vegetable garden the last two years :) Don't worry, we will definitely not eat it... There are quite a few in the yard, I'm seeing--- I'll be pulling them all out. Thanks!