Cheese Sauce
Place potatoes, carrots and onion in a saucepan filled with water. Boil the vegetables until cooked through and tender, about 15-20 minutes. Reserve ½ cup of the water and remove the vegetables with a slotted spoon. Set aside.
In the same water, cook the noodles as per the instructions on the package. This step is optional - you may also strain the vegetables and use new water, but this step infuses the noodles with more flavour.
While the vegetables and reserved water are still hot, place all ingredients except the noodles into a high powered blender. Blend on high until completely smooth.
Assembly
Preheat the oven on your broil setting (usually 500 degrees).
Mix together all of the ingredients for the topping in a medium bowl. Set aside.
Stir the sauce into the cooked pasta until well incorporated. Cover with the topping ingredients and broil until the top is browned. Serve immediately.
Calories: 311kcal | Carbohydrates: 50g | Protein: 9g | Fat: 8g | Saturated Fat: 1g | Polyunsaturated Fat: 1g | Monounsaturated Fat: 5g | Sodium: 420mg | Potassium: 442mg | Fiber: 4g | Sugar: 3g | Vitamin A: 3708IU | Vitamin C: 11mg | Calcium: 37mg | Iron: 2mg