Creamy Chicken Orzo Soup

1 tablespoon olive oil 1 cup carrot , peeled and chopped 1/2 cup celery , chopped 1/4 cup green onion , chopped (if making in the winter, you can substitute[...]

2 tablespoons olive oil 1 cup celery , thinly sliced 1 cup baby carrots, thinly sliced 1 small onion , chopped 1 teaspoon kosher salt 1 teaspoon fresh ground[...]