Crock Pot Jambalaya

Name: Crock Pot Jambalaya
Ingredients: 1 large onion, chopped (about 1 cup); 1 medium green bell pepper, chopped (about 1 cup); 2 medium celery ribs, chopped (about 1 cup); 3 garlic cloves, finely chopped; 1 (28 ounce) can diced tomatoes, undrained; 2 cups smoked sausage, chopped fully cooked; 1 tablespoon parsley flakes; 1⁄2 teaspoon dried thyme leaves; 1⁄2 teaspoon salt; 1⁄4 teaspoon pepper; 1⁄4 teaspoon red pepper sauce; 3⁄4 lb medium shrimp, uncooked peeled deveined, thawed if frozen