Kitchen window treatments are a tricky thing, as the room can generate smells and grime that you don't want soaking into fabrics and soft treatments. One idea for kitchen windows is the interior shutter. On that note, here's a little inspiration:
Just think: shutters can be painted to match kitchen cabinetry for continuity. Wiped clean and thrown open or closed even up-to-your-elbows in dough, shutters seem a perfect window treatment to consider for the kitchen.
Related: Kitchen-Friendly Window Treatments