Cook the spaghetti noodles according to package instruction. Set aside.
Prepare the Alfredo sauce by following the recipe on the link above. You will need 2 servings of Alfredo sauce for this Smoked Salmon Pasta Recipe.
Chop the smoked salmon into small pieces. Add the chopped salmon in the cooking pot with the Alfredo sauce. Stir and continue to cook for 2 minutes.
Arrange the spaghetti noodles in a serving plate. Pour the smoked salmon Alfredo sauce over the noodles and top with Parmesan cheese and red pepper flakes.