Cheesy Broccoli-and-Rice Casserole | Recipe Cart | Recipe Cart

Ingredients

• 6 tablespoons unsalted butter, divided
• 1 cup panko (Japanese breadcrumbs)
• 2 cups (8 oz.) shredded extra-sharp Cheddar cheese, divided
• 3 cups reduced-sodium, fat-free chicken broth
• 2 cups milk
• 1 bay leaf
• 1 fresh thyme sprig
• 2 cups chopped onion
• ½ cup diced celery
• 1 (8-oz.) package sliced cremini mushrooms
• 1 teaspoon kosher salt, divided
• Pinch of freshly ground black pepper
• Pinch of ground red pepper
• 2 garlic cloves, minced
• ¼ cup all-purpose flour
• 1 ½ cups uncooked long-grain rice
• ½ cup sour cream
• ½ cup mayonnaise
• ⅛ teaspoon freshly grated nutmeg
• 3 cups fresh broccoli florets (about 2 heads)