Grandmas Golden Chicken Rice Casserole So Easy - Kitchen20

Ingredients

• 1.5 lbs (680g) boneless, skinless chicken breasts, cooked and shredded
• 1 tbsp (15ml) olive oil or vegetable oil
• 1/2 tsp salt
• 1/4 tsp black pepper
• 1 cup (200g) uncooked long-grain white rice
• 2 cups (475 ml) chicken broth
• 1 medium onion, chopped (about 1 cup/150g)
• 2 celery stalks, chopped (about 1 cup/120g)
• 1 cup (100g) frozen peas
• 1 cup (100g) sliced mushrooms (optional)
• 2 cans (10.75 oz/305g each) cream of chicken soup
• 1/2 cup (120ml) milk or half-and-half
• 1/4 cup (55g) sour cream (optional)
• 1/4 cup (60g) mayonnaise
• 1/2 cup (50g) shredded cheddar cheese
• 1/4 cup (30g) crushed Ritz crackers
• 2 tbsp (30g) melted butter