Slow Cooker Chicken Stroganoff

4 skinless, boneless chicken breast halves - cubed

⅛ cup margarine

1 (.7 ounce) package dry Italian-style salad dressing mix

1 (8 ounce) package cream cheese

1 (10.75 ounce) can condensed cream of chicken soup

Put chicken, margarine and dressing mix in slow cooker; mix together and cook on low for 5 to 6 hours.

Add cream cheese and soup, mix together and cook on high for another 1/2 hour or until heated through and warm.