Step 1

Spray inside of slow cooker with cooking spray. Place chicken in slow cooker and sprinkle with dry Italian dressing mix.

Step 2

In a large bowl, combine condensed soup, diced tomatoes, and marinara. Pour sauce over chicken.

Step 3

Cook on LOW for about 6-8 hours, or on HIGH for about 2-3 hours.

Step 4

Remove chicken to a cutting board and cover loosely with foil to keep warm.

Step 5

While the chicken rests on the cutting board, add the cream cheese to the slow cooker, stir and cover. Continue cooking the sauce for 5-10 more minutes, or until cream cheese is melted and completely combined in the sauce.

Step 6

Slice chicken or shred with two forks. Return chicken to the creamy sauce, stir, and serve over cooked spaghetti. Garnish with grated Parmesan and fresh herbs, if desired.