My refrigerator is a graveyard of half-used jars. Jams, condiments, spreads, pickles — you get the idea. Even so, there’s at least one personal favorite staple I like to keep around all the time: ...

1. Heat a large, deep skillet or flameproof casserole over medium heat. Add the oil, and when it is hot, cook the onion, stirring, for 5 minutes, or until softened. 2. Add the cauliflower, butternut, ...