Slow Cooker Italian Sausage Tortellini Soup

large Italian sausage links, frozen (regular or spicy)

red bell pepper, (diced)

medium onion, (diced)

Italian seasoning

juice of 1 small lemon (about 2 tablespoons)

garlic powder

low sodium chicken broth

salt and pepper

tortellini pasta

freshly chopped parsley, optional