Cut bread into cubes and lay it into a single layer on a baking sheet. Toast for 5 minutes in a 350-degree oven.
Melt butter, celery, and onion in a large skillet; cook for 8-10 minutes or until soft.
Combine broth, whisked eggs, salt, pepper, and herbs together.
Place bread cubes in a large bowl. Stir in celery and onions.
Pour broth mixture over the stuffing mix. Gently toss to evenly coat the bread cubes.
Place in a greased 9x13 baking dish. Cover with foil and bake for 25 minutes. After 25 minutes remove foil and bake for an additional 15-25 minutes depending on the texture you prefer best.