Chicken Divan (aka Chicken & Broccoli Casserole) 🥦 3 cups cooked chicken, cubed 🥦 3 cups broccoli...

Chicken Divan (aka Chicken & Broccoli Casserole)
🥦 3 cups cooked chicken, cubed
🥦 3 cups broccoli florets
🥦 4 Tbsp butter
🥦 ¼ cup diced onion
🥦 1 celery stalk, diced
🥦 1 tsp minced garlic
🥦 1 can cream of mushroom soup
🥦 ½ cup milk
🥦 ½ cup mayonnaise
🥦 ½ cup sour cream
🥦 1 tsp Worcestershire sauce
🥦 ½ tsp mustard powder
🥦 2 cups shredded cheddar cheese
🥦 ½ cup panko breadcrumbs
🥦 salt & pepper