Slow Cooker Creamy Wild Rice Soup with Butter Roasted Mushrooms

Name: Slow Cooker Creamy Wild Rice Soup with Butter Roasted Mushrooms
Prep time: 15 min
Cook time: 6 h
Total time: 6 h 15 min
Cuisine: American
Ingredients: 1 cup dry wild rice or wild rice blend ((wild rice and brown rice)); 1/2 sweet onion, diced; 6 carrots, chopped; 5 cups low-sodium veggie or chicken broth; 1 cup dry white wine; 1 tablespoon chopped fresh thyme + 3 thyme sprigs; 2 bay leaves; 1 teaspoon paprika; 1/2 teaspoon crushed red pepper flakes; 1 parmesan rind + 1/2 cup grated parmesan, plus more for serving; 1 cup whole milk or heavy cream; kosher salt and pepper; 2 pounds mixed mushrooms, roughly torn; 4 cloves garlic, smashed; 1 stick (8 tablespoons) butter; zest from 1 lemon