In a skillet over medium heat, cook the sauce, onion, and celery until sausage is cooked through.
In a large bowl, combine the toasted bread cubes, salt, poultry seasoning, sage and pepper. Stir in sausage, onion, & celery mixture. Combine broth and eggs; add to bread mixture and toss to coat.
Transfer to a slow cooker coated with cooking spray. Cover and cook on low for 3-4 hours