The phrase "dish of this" means something that is pleasing or enjoyable, often referring to a food or meal. It suggests that the particular dish being talked about is tasty or delightful to eat. Full definition
Since they're in season, you won't pay much for a bag and that's more than enough to prepare a sweet side dish of baked apples for your guests. (businessinsider.com)
Simply cut flowers at the tops of the stems and float them in little dishes of water. (bhg.com)
This buffalo cauliflower was born from a failed (ok a few failed) recipe (s) but has turned into a favorite dish of mine. (bendifulblog.com)