Pat the shrimp dry then add to a small bowl, season with ½ teaspoon salt, ¼ teaspoon pepper, 1 teaspoon paprika and ½ teaspoon garlic powder. Mix until fully combined, set aside.
In a large skillet over medium heat add 1 tablespoon of olive oil. Begin browning the sausage, working in batches if needed. Set aside until needed.
To the same pan add in 1 tablespoon of butter. Add the shrimp to the pan, cook for 2-3 minutes on each side. Remove from the pan and set aside.
Now add the diced onion, bell pepper and celery to the pan. Cook for 5-6 minutes or until tender. Add in the minced garlic and continue cooking for 30 seconds.
Pour in the chicken stock, scraping up any browned bits from the bottom of the pan. Increase the heat to high and bring it to a boil. Stir in the Cajun seasoning, remaining paprika, garlic powder, salt, pepper, and pasta. Cover with a lid, reduce the heat to low, and let it simmer for 8 minutes. This pasta will not be done at this point.
Remove the lid, add in the cream cheese. As the cream cheese melts, stir to prevent burning. Once all of the cream cheese is melted, turn the heat to medium and add in the heavy cream, milk and diced tomatoes.
Bring to a simmer, stirring regularly to prevent scorching. Once the pasta is fully cooked and the sauce has thickened stir in the sausage and shrimp. Enjoy!