Add the zest and juice of the lemons to the pan, then asparagus pieces and cover. Cook for 2 minutes or until the asparagus is bright green and crisp-tender.
Add chicken/asparagus mixture, starchy cooking water, parmesan cheese, salt, pepper and red pepper flake (if using) to cooked pasta and stir to combine.
Enjoy!
Recipe by Becky's Best Bites at https://beckysbestbites.com/lemon-garlic-chicken-pasta-asparagus/