Bring a large pot of salted water to a boil.
Cook pasta according to package directions until al dente. Reserve ½ cup pasta water, then drain pasta.
Season chicken with garlic powder, Italian seasoning, paprika, salt, and black pepper.
Heat olive oil in a large skillet over medium-high heat.
Cook chicken until golden brown and fully cooked. Remove and set aside.
Reduce heat to medium and add minced garlic to the skillet. Cook for 1 minute until fragrant.
Pour heavy cream into the skillet and bring to a gentle simmer.
Add feta cheese and Parmesan cheese, stirring until smooth and creamy.
Return cooked chicken and pasta to the skillet. Toss until evenly coated.
Add reserved pasta water if needed to loosen sauce.
Serve warm with optional fresh basil or extra Parmesan cheese.