Preheat oven to 375°F. Melt butter in large skillet on medium heat. Add celery and onion; cook and stir 5 minutes. Stir in thyme, poultry seasoning, seasoned salt and pepper.
Place bread cubes in large bowl. Add celery mixture and broth; toss gently until well mixed. Spoon into lightly greased 13x9-inch baking dish.
Bake 35 minutes or until heated through and lightly browned.