With its crinkly texture, savoy cabbage is our go-to for stuffed cabbage, but the regular ol' green variety also works. Both will become meltingly tender.
We call for semi-pearled grains because they cook more quickly and have a roughened-up texture that helps them soak up the dressing. Browning them first deepens their flavor.
It's ideal to serve these leeks warm (the smell just out of the oven is amazing), but they can also be made a few hours ahead and served at room temperature.