I keep a small bowl in the freezer that I dump leftover veggies from other meals. This bowl of assorted pre-cooked veggies gets dumped in 30 minutes before serving.
For those who love a tomato-flavored stew, add 2 small cans of V8(R)!
Even if you don't like some veggies, if you cook them, puree, and add to this dish you will love the flavor and not have the chunks! A trick to get the grandkids to eat is to puree veggies and hide them in the pot!