Boil a large pot of salted water and cook the pasta according to the package instructions. Once done, reserve 1-2 cups of pasta water, then drain and set it aside.

Heat olive oil in a large skillet over medium heat. Add the diced onion and green bell pepper, cooking for about 3-4 minutes until soft.

Add the ground beef to the skillet and cook until browned, breaking it apart as it cooks. Toss in the crushed garlic, oregano, paprika, salt, and black pepper, and let it cook for another minute.

Mix in the tomato paste and tomato sauce. Let it all simmer together for about 5 minutes.

Stir in the cream cheese and sour cream until smooth and creamy. Let the sauce cook just enough to be hot.

Add the cooked pasta to the skillet and toss it in the creamy beef sauce, making sure everything is coated well. Add a splash of the reserved pasta water if it looks too thick.

Tear up the fresh basil leaves and sprinkle them over the pasta, then adjust the seasoning to taste and serve hot.