Bring a pot of salted water to a boil.
Cook linguini according to package until al dente. Strain and set aside until sauce is complete.
Into a sauce pan, add sliced andouille sausage. Cook for 3-4 minutes on each side over medium heat. Set aside when complete.
Into the same sauce pan, add half and half, onion powder, garlic powder and cajun spices.
Stir ingredients and bring to a slight boil.
Next add whipping cream. Bring to a simmer and allow sauce to thicken (5 minutes).
Add grated parmesan into sauce. Stir well until melted and allow to thicken for 5 more minutes.
When sauce is ready, add salt and pepper to taste.
Finally, pasta and sausage back into pan. Stir to combine. Garnish with chopped parsley, serve & enjoy!