Ritz Chicken Rice Casserole (Creamy, Crunchy, Easy) - Quickie Recipe

Ingredients

• 2 tablespoons unsalted butter
• 1 small yellow onion, finely diced
• 1 celery rib, finely diced
• 1 can (10.5 oz / 298 g) condensed cream of chicken soup
• 1/2 cup (120 g) sour cream
• 2 cups (480 ml) low-sodium chicken broth
• 1/2 teaspoon garlic powder
• 1/2 teaspoon kosher salt, plus more to taste
• 1/4 teaspoon black pepper
• 2 cups (190 g) instant white rice, uncooked
• 3 cups (420 g) cooked shredded chicken
• 1 sleeve round buttery crackers, such as Ritz, coarsely crushed
• 4 tablespoons (56 g) unsalted butter, melted
• 1 tablespoon chopped fresh parsley or sliced green onions, optional