Put in pan and toss with a "little bit" of olive oil, salt, and pepper
Roast at 400 degrees for 15 minutes, flip. Then cook 15 more minutes
Let cool and peel off skins
Chop.
Finely mince 1/4 cup of minced red onion. Put in bowl and cover with cold water for 5 minutes. This takes the sharpness out of the onion to keep them from overpowering the other flavors. Drain water.
Mix in two stalks of celery finely diced and the minced onion.
1/3 cup of Authentic Chimichurri sauce or to taste.
...and that's it.