In a large bowl, combine the potatoes, corn, ham, bell pepper, minced onion, salt and pepper, mixing well. Spread the mixture into the bottom of a slow cooker.

In a bowl, whisk together the soup, milk and flour, whisking until smooth. Pour the mixture over the potato mixture, stirring to combine.

Cover and cook on low for 7-8 hours, until the potatoes are fork tender. Season with salt and pepper. Let stand for 5-10 minutes before serving.