Step 1

Preheat oven to 400 degrees. Toss vegetables with enough oil to evenly coat in a thin film; season with salt and pepper. Spread in a single layer on one or more rimmed baking sheets, without crowding.

Step 2

Roast, stirring vegetables once (and rotating sheets' rack positions, if using two or more sheets) halfway through, until tender and golden brown in places, 40 to 50 minutes. Serve, or let cool completely and refrigerate in an airtight container up to 1 week. Vegetables can be reheated in the microwave or in a 350-degree oven until warmed through.