Preheat your oven to 350°F (175°C).
In a large skillet, sauté the onion and celery in a little olive oil until soft, about 5 minutes.
In a large bowl, combine the bread cubes, sautéed vegetables, herbs, salt, and pepper.
Pour the broth over the mixture and stir until the bread is well coated but not soggy.
In a separate bowl, whisk together the eggs and then add them to the stuffing mixture, stirring until well combined.
Spoon into greased muffin tins, filling each cup halfway, adding a spoonful of gravy, and then topping with more stuffing mixture.
Bake for 20-25 minutes or until the tops are golden brown and crispy.
Allow to cool slightly before removing them from the muffin tins, serving warm.