01 - Heat a large deep skillet or Dutch oven over medium-high heat. Add the ground beef and cook for 4–5 minutes, breaking it apart with a wooden spoon until browned. Drain excess fat if needed.
02 - Add the chopped onion to the skillet and cook for 2–3 minutes until softened. Stir in the minced garlic and cook for 30 seconds until fragrant.
03 - Sprinkle in the Italian seasoning, paprika, salt, and black pepper. Stir well to distribute the spices evenly.
04 - Pour in the pasta shells, beef broth, and tomato sauce. Stir thoroughly to combine and bring the mixture to a gentle simmer.
05 - Reduce heat to medium-low, cover the skillet, and cook for 12–14 minutes. Stir occasionally to prevent sticking. Continue until the pasta is al dente and most of the liquid has been absorbed.
06 - Remove from heat. Stir in the heavy cream, shredded cheddar cheese, and grated Parmesan cheese. Mix continuously until the cheeses melt completely and the sauce becomes smooth and creamy.
07 - Let the dish rest for 2 minutes to allow the sauce to thicken slightly. Taste and adjust seasoning if desired. Garnish with chopped fresh parsley before serving.