Preheat oven to 180°C and lightly grease the baking dish.
Heat olive oil in a skillet over medium heat.
Sauté onion and celery for 5 minutes until soft.
Add garlic and cook 30 seconds until fragrant.
Transfer vegetables to a bowl with bread cubes.
Add herbs, nutritional yeast, salt, and pepper; toss well.
Pour broth gradually, mixing until bread feels moist, not soggy.
Spread mixture evenly into baking dish.
Bake uncovered for 30 minutes until golden and crisp on top.
Garnish with parsley before serving.