Broccoli Cheddar Casserole - Easy Home Meals

Ingredients

• 3 Tbsp butter
• 1/4 cup chopped onion
• 2 Tbsp. all-purpose flour
• 3/4 cup chicken broth
• 1-1/2 cups half-and-half
• 2 cups shredded cheddar cheese, divided
• 1 (12-oz.) package frozen broccoli florets, thawed
• 8 oz. mushrooms, sliced
• 2 cups cooked rice
• 1 tsp. garlic powder
• 1/2 tsp. salt
• 1/4 tsp. black pepper
• 1/2 cup coarsely crushed butter crackers