Combine The Frozen Boneless Chicken Breast, Prepared Pizza Sauce, And Salsa Verde In A Slow Cooker. Cover The Cooker, And Cook On Low 8 To 10 Hours. Use 2 Forks To Pull The Chicken Meat Apart Until Completely Shredded. Stir 1/2 Cup Sour Cream Into The Chicken Mixture. Place The Chicken Mixture Onto The Rolls. Top Each Sandwich With 1 Ounce Shredded Cheddar Cheese, 1 Ounce Sour Cream, And 2 Dashes Hot Sauce To Serve