In a heavy 3-quart saucepan, sauté onion in vegetable oil until soft and golden.
Add all remaining ingredients except salt and pepper. Heat thoroughly. Add salt to taste and a generous sprinkling of pepper.
Note: If you need a gluten-free and/or vegan soup, be sure to check the can’s ingredients. Creamed corn is usually vegan, because the “cream” comes from the corn itself, not from dairy milk.