With the rack in the middle position, preheat the oven to 180°C (350°F).
In a bowl, combine the eggs, milk, cheese and chives. Season with salt and pepper.
In a 23-cm (9-inch) ovenproof non-stick skillet over medium heat, reheat the pasta with the butter. Pour the egg mixture over the macaroni and stir gently with a spatula for about 30 seconds. Transfer to the oven and bake for about 10 minutes. Broil briefly to brown the top.
Serve with green salad or steamed green vegetables.
A creative use for leftover noodles
Recipes with the "Healthy Pick" stamp have been evaluated by a registered dietitian member of the Ordre professionnel des diététistes du Québec.