How to make Chicken Casserole, Healthy Low Fat Chicken Macaroni Casserole, Casserole made from Lefto

Ingredients

• 2 tbsp butter
• 2 tbsp extra virgin olive oil
• 4 tbsp all purpose flour
• 1 tsp salt
• 3 cups (720 cc) 1% low-fat milk
• 1 cup left-over roast chicken , chopped
• 1/2 yellow onion, finely chopped
• 1 stalk celery, chopped
• 1 carrot, diced
• 1 cup (75 g) broccoli flowerets
• 1 cup (75 g) cauliflower flowerets
• 1/4 green bell pepper, chopped
• 1 cup (240 cc) dry macaroni
• bread crumbs
• Parmesan cheese