Ham and Cheddar Corn Chowder

Name: Ham and Cheddar Corn Chowder
Ingredients: * 2 tablespoon vegetable oil; * 1 large yellow onion, peeled and diced; * 3 carrot, peeled and diced; * 2 celery rib, diced; * 3 clove garlic, minced; * 5 medium red skinned potato, cubed; * 6 cup chicken stock; * 1/4 teaspoon cayenne pepper; * 2 teaspoon ground coriander; * 2 can (16 oz each) whole kernel corn, undrained; * 2 can (16 oz each) cream style corn; * 4 cup shredded sharp cheddar cheese; * 2 cup whole milk; * 1/4 teaspoon worcestershire sauce; * 1 green onion, sliced plus more for garnish; * 4 cup cooked diced ham; * salt and pepper to taste