Winter time is the best for this. SO easy.
Just cut them up in bite sized pieces, toss with a little olive oil and salt and pepper. (I like lemon pepper.)
Put in a 400' oven and roast for about 30-45 minutes.
Root vegetables of all kinds are so available now.
You can just do simply carrots, potatoes and onions if that's what you have.
I made this tray last week and I think there were carrots, a sweet potato, onions, beets, kholrabi, and yellow pepper.
This week we had a combination of squash, rutabagas, fennel, and onions.
I've never tried a combination of vegetables that doesn't taste good.
Sorry about the ugly panWe had tilapia and rolls with this, and these were the only vegetables left after dinner for the 2 of us.
They are that good!
And the hot oven warms up the house.