Stove Top Method:(This first step is optional, but I like to saute my onions in the Olive Oil, just to sweeten the flavor of the onion. If you choose not to do it, then you won't need the Olive Oil and you can just add the onion to the soup mix)In a large pot saute onions in Olive Oil till translucent.Add the soups, corn, ham and salt and pepper to the pot.Simmer for 20 minutes.Add the half and half and heat through for 10 more minutes.Slow Cooker Method:Same as above, but just throw all the ingredients excluding half and half into your crock pot and cook on low for 4 hours.Add the half and half after four hours and heat through for 20 more minutes on low.