Preheat oven to 180°C.
Boil macaroni in salted water until al dente then drain and return to the pot .
Empty contents of sachet of KNORR Three Cheese Pasta Sauce into a jug and add the boiling water. Stir with a fork for 1 minute then mix the sauce into the cooked macaroni.
Add the frozen peas, smoked chicken, egg yolks and paprika and mix well to combine.
Transfer to an oven proof casserole dish, top with desired amount of grated cheddar cheese and place in the oven.
Allow to bake for 20 minutes or until bubbling and crispy on top and serve!