haluski recipe

1 small head of cabbage, cored and chopped - 1 large onion, finely chopped - 1/2 cup butter - 1 package (12 ounces) egg noodles - 1 teaspoon salt - 1/2 teaspoon black pepper - 1/4 teaspoon paprika (optional) - Fresh parsley, chopped (optional, for garnish)