Easy Chicken without dough cutlets

1/2 tablespoon canola oil 1/2 medium yellow onion , finely chopped 1 -2 cooked boneless skinless chicken breast, cubed 1 (10 1/2 ounce) can cream of chicken[...]

2 tablespoons extra virgin olive oil 1 onion , diced 4 large carrots , peeled and cut into bite size pieces 3 -4 stalks celery , chopped into bite size pieces[...]