Prepare the okra by trimming it and removing the tough stem ends.
To help the okra pods roast more quickly and evenly, cut them in half lengthwise.
Remove the roots from the green onions, along with any green parts that have dried out. Cut them in half lengthwise, then cut them into 3 inch lengths (including the green parts).
Mix the okra and green onion together in a roasting pan, then drizzle with olive oil and sprinkle with salt. Toss until well combined.
Ensure the vegetables are evenly spread in a single layer, then place the pan into the oven and roast for 15 minutes. Take the pan out of the oven, stir well, then return the pan to the oven until the okra has started to brown and is tender (this usually takes another 10 to 15 minutes).