Actually, if you watch this video, you don't even need a pattern!
I have been a fan of Donna Jordan at Jordan Fabrics for a long time. Her family business is very generous with great videos teaching how to make quilts and use some of the fabrics they sell. This is a free tutorial technique video to make a Bargello looking quilt without all the hard work. Like always, if you follow this video, you can have a quick successful quilt too. Below is her YouTube tutorial with all the instructions you need to try this yourself.