Begin by bringing a large pot of salted water to a boil. Add the pasta and cook according to package instructions until al dente. Drain it and set aside, reserving about 1/2 cup of pasta water for later.

In a large skillet, heat the olive oil over medium heat. Once hot, add the diced chicken. Season with salt and pepper. Cook for about 5-7 minutes until the chicken is cooked through and golden brown. Remove the chicken from the skillet, set it aside, and lower the heat.

In the same skillet, add minced garlic and sauté for about 1 minute until fragrant. Pour in the heavy cream, bringing it to a gentle simmer. Stir in the Parmesan cheese, lemon juice, and zest. Mix until well combined.

Add the cooked pasta and chicken back into the skillet. Toss everything together, adding a little of the reserved pasta water if needed to reach your desired sauce consistency. Taste and adjust seasoning with salt and pepper.

Garnish with fresh parsley before serving for that perfect finishing touch!