Chicken Broccoli Rice Casserole | Just A Pinch Recipes

Ingredients

• 1/2 cup(s) butter
• 1 large onion, chopped
• 1 - celery rib, chopped
• 3 - garlic cloves, minced
• 1 - 10 oz. package frozen chopped broccoli
• 1 - 10 1/2 oz. can cream of mushroom soup
• 2 cup(s) mexican blend shredded cheese, divided
• 1 - 4 oz. can sliced mushrooms
• 1 1/2 cup(s) cooked rice
• 2 cup(s) diced cooked chicken
• - salt and cayenne pepper to taste