Ingredients

4 skinless, boneless chicken breast halves

(28 ounce) jar spaghetti sauce (such as Classico(R) Cabernet Marinara with Herbs)

1 (6 ounce) can tomato paste

1/4 pound sliced fresh mushrooms

1/2 yellow onion, minced

1/2 green bell pepper, seeded and diced

3 tablespoons minced garlic

1 1/2 teaspoons dried oregano

1/2 teaspoon dried basil

1/2 teaspoon ground black pepper

1/4 teaspoon red pepper flakes (optional)

Directions

Place chicken in a slow cooker; stir in spaghetti sauce, tomato paste, mushrooms, onion, bell pepper, garlic, oregano, basil, black pepper, and red pepper flakes. Cover.

Cook on Low until chicken is tender, 6 to 8 hours.