Return pan to medium-high heat. Brush liberally with olive or avocado oil. Add onion, celery, and carrot. Saute 10 minutes or until onion begins to brown. Stir in mushrooms and cook 4 minutes. Stir in pear, basil, tarragon, and salt. Cook about 4 more minutes or until pear begins to soften, stirring occasionally. Add pear mixture to bread mixture, tossing gently to combine. Stir in broth and pepper. Can add more broth to desired texture.