Cook the pasta according to package directions.
Season the shrimp with salt and pepper. In a skillet, heat 1 tablespoon butter and cook for 1-2 minutes per side, until no longer translucent. Remove from the pan and cover with foil.
In the same skillet, heat 2 remaining tablespoons butter and add the onion and bell peppers. Cook for 3-5 minutes. Now add the garlic and cook for 30 seconds more. Then, add the tomatoes.
Add the sausage and cook for another 1-2 minutes, stirring. Now add the cajun seasoning, thyme, oregano, and mix well. Pour in chicken stock, heavy cream, and Worcestershire sauce. Mix once again.
Add the cooked shrimp and pasta and toss to coat. Sprinkle with the Parmesan cheese.
Add more salt and pepper, if needed. Sprinkle with the chopped parsley and serve. Enjoy!