Crock Pot Boneless Chicken Cacciatore Ingredients 6 chicken breasts, boneless (sliced in half) olive oil 1 cup yellow onion, coarsely chopped 32 ounces tomato sauce, jarred 2 teaspoons dried oregano, (crushed) 2 teaspoons dried thyme, (crushed) 2 teaspoons salt 2 teaspoons pepper 2 teaspoons garlic, minced 6 ounces sliced mushrooms, canned 1/4 cup dry red