1. Saute onion, carrot and celery in butter until soft-about 7-8 minutes 2. Add cauliflower and mushrooms, season with salt and pepper. cook until tender-about 8-10 minutes more 3. Add parsley, rosemary, sage, and stir until combines, then pour over vegetable broth and cover with lid. Cover until totally tender and liquid is absorbed-about 15 minutes 4. Serve