Sometimes, the best way to cook fresh produce is the simplest way of all.
For roasting vegetables, put them on a baking sheet, sprinkle with olive oil and a bit of kosher salt, and cook in a hot oven until tender, turn once or twice.
For steaming vegetables, put a small amount of water in a saucepan and heat over a medium-high heat until tender, as little as 2 minutes or up to 10, depending on the vegetable.