Cut chicken breast into 1-inch bite-sized pieces and season with salt and pepper. Trim the tough ends from asparagus and cut into 2-inch pieces. Thinly slice leeks using only the white and light green parts, then mince garlic cloves. Juice the lemon (you'll need about 3 tablespoons total) and zest it for finishing. Chop fresh parsley and crumble the Boursin cheese. Having everything prepped before you start cooking ensures smooth timing and prevents overcooking any component.

Heat 1 1/2 tbsp olive oil in a large skillet over medium-high heat. Add seasoned chicken pieces and cook for 5-6 minutes, stirring occasionally, until lightly browned on the outside (it doesn't need to be fully cooked through). Remove chicken to a plate. In the same pan, add asparagus pieces and cook for 6-9 minutes until just tender-crisp, then season with a pinch of salt, pepper, and a squeeze of fresh lemon juice. Remove asparagus to the same plate with the chicken—this quick sear develops flavor while keeping both proteins tender.

In the same skillet, reduce heat to medium-low and add 1 1/2 tbsp extra virgin olive oil. Add sliced leeks and cook for 5-6 minutes, stirring frequently, until softened and fragrant. Add minced garlic and red pepper flakes, cooking for just 1 minute until the garlic becomes aromatic—don't let it brown. This gentle cooking of the aromatics creates a sweet, mellow foundation for the dish without harsh flavors.

Add orzo to the skillet with the leek mixture and cook for 3-4 minutes, stirring constantly, to lightly toast the pasta—this adds a subtle nutty flavor. Pour in chicken broth and water, stirring well to combine. Bring to a boil, then reduce heat to medium and simmer for 10-12 minutes, stirring occasionally, until the orzo is nearly tender and has absorbed most of the liquid. I find that toasting the pasta first prevents it from becoming gummy and gives the whole dish better texture.

Add the seared chicken and asparagus from Step 2 back to the skillet, along with the crumbled Boursin cheese. Stir gently until the cheese melts and coats the pasta, about 2-3 minutes. Cover and let sit for 4-5 minutes off heat, allowing the flavors to meld and the pasta to finish cooking. Taste and adjust seasoning with fresh lemon juice, salt, and pepper. Finish with fresh parsley and a sprinkle of lemon zest for brightness. I always cover and let it rest at the end—it gives the creamy cheese sauce time to settle into the pasta without looking soupy.