In a large mixing bowl, combine the chopped cauliflower, celery, onion, garlic, and mushrooms.
Drizzle the olive oil over the vegetables and toss to coat.
Add the vegetable broth, dried sage, dried thyme, salt, and black pepper. Mix well.
Transfer the mixture to a baking dish and spread it out evenly.
Bake in the preheated oven for 45 minutes, or until the vegetables are tender and golden brown.
Remove from the oven and let it cool for a few minutes before serving.
Notes:
This cauliflower stuffing casserole is a great low-carb alternative to traditional stuffing. Perfect for holiday meals or as a side dish for any dinner.