Lower heat, push veggies aside, add butter and olive oil, then toss in cooked pasta, chicken, parmesan, lemon juice, and a splash of reserved pasta water. Toss until well combined, adding more water if dry.
Adjust seasoning with lemon or cheese as desired, then serve topped with extra parmesan, fresh herbs, and a squeeze of lemon.
Notes
For extra flavor, sprinkle with fresh herbs and a final squeeze of lemon before serving.