01 - Preheat oven to 350°F (175°C) and lightly grease a 12-cup muffin tin with butter or nonstick spray.
02 - Arrange bread cubes on a baking sheet and bake for 10 to 12 minutes until lightly crisped. Allow to cool slightly.
03 - Melt butter in a large skillet over medium heat. Add chopped onion, celery, and carrots; cook for 5 to 7 minutes until vegetables are soft. Stir in minced garlic, sage, thyme, parsley, salt, and black pepper, sautéing for 1 additional minute.
04 - Transfer toasted bread cubes to a large mixing bowl. Add sautéed vegetables and herbs, mixing gently to distribute evenly.
05 - In a separate bowl, whisk together broth and eggs. Pour liquid mixture over the bread and vegetables, tossing gently until the bread is evenly moistened but holds its structure.
06 - Divide the stuffing mixture evenly among the prepared muffin cups, pressing lightly to compact.
07 - Bake for 25 to 30 minutes until the tops are golden brown and crisp. Let rest in the pan for 10 minutes before carefully removing.
08 - Arrange warm stuffing muffins on a serving platter for holiday meals or family gatherings.