In a container, add shrimp, sausage and seasonings. Mix well. In a skillet over medium to low heat, add olive oil and saute onion, next add seasoned shrimp and sausage and cook for about 5 minutes. Until shrimp is done. You may need to add more olive oil. Once cooked remove ingredients from skillet and set aside.
Next add pasta water, cream cheese and cream to skillet. Bring to a simmer and add black pepper, smoked paprika, cajun seasoning and continue to stir.
Next add in the cooked pasta and continue to stir until well combined. Toss in shrimp and sausage and onions until combined.