I love pleats. A lot. But I found it hard to find a nice pattern for a dress with pleats. So I turned to the Raglan Shift Dress pattern again, and instead of inserting an elastic, I used pleats and bias. A zipper in the back, and done!
EDIT: more people have contacted me to complain about the fact that WholeGrainBaby charges, but does not deliver. If you like this pattern, it's better to buy a similar one from a more trustworthy shop, e.g., via Etsy (this one, or this one, or this one, or just search for peasant dress pattern) or download this free one for newborns only.