Teriyaki for chicken? It doesn't have to be at all. Teriyaki also gives vegetables (from the oven) great flavour. Teriyaki sauce always contains salt and sweet. For a vegetable casserole like this, that provides a nice layer of glaze. A super-fast recipe for when you are at home but don't feel like standing in the kitchen for a long time. You only have to cut the vegetables, the oven does the rest of the work!