Add 1 medium onion, roughly chopped, 1 small carrot, roughly chopped and 1 small celery rib, roughly chopped. (myyellowfarmhouse.com)
Add a diced yellow onion, some sliced carrots, sliced celery ribs, some salt and pepper and cook until fragrant, about 2 minutes. (thehealthyfoodie.com)
Cut the onion into 4 pieces and break the carrots and celery ribs into 2 to 3 pieces. (thehealthyfoodie.com)