Cook the pasta: Bring a large pot of salted water to a boil and cook the pasta according to the package instructions. Drain and set aside.

Brown the beef: While the pasta is cooking, heat olive oil in a large skillet over medium heat. Add the ground beef and cook until browned, breaking it apart with a spoon. Drain excess fat if necessary.

Add seasoning: Stir in the taco seasoning, garlic powder, onion powder, salt, and pepper. Add the salsa and mix well.

Make the cheesy sauce: Lower the heat and add the softened cream cheese, shredded cheddar cheese, sour cream, and milk. Stir until the cheese melts and the sauce becomes creamy.

Combine pasta and sauce: Add the cooked pasta to the skillet and toss until the pasta is evenly coated with the cheesy taco sauce.

Serve: Garnish with chopped green onions or cilantro if desired. Serve hot.