1-First Step: Prepare the pasta
Bring a large pot of salted water to a rolling boil. Add 12 oz fettuccine or linguine and cook until al dente, about 8-10 minutes. Stir occasionally to prevent sticking. Drain, reserving ¼ cup pasta water, and set pasta aside. Salting the water seasons the noodles from the start, enhancing overall flavor in your creamy lemon chicken pasta recipe.

2-Second Step: Season and sear the chicken
Pat 1 lb boneless skinless chicken breasts dry with paper towels. Season both sides generously with salt and pepper. Heat 2 tbsp olive oil in a large skillet over medium-high heat until shimmering. Add chicken and sear 5-6 minutes per side until golden brown and internal temperature reaches 165°F. Use a meat thermometer for accuracy to avoid dry chicken. Remove to a plate, tent with foil, and slice thinly once rested for 2 minutes. This step builds fond in the pan for richer sauce.

3-Third Step: Build the sauce base
Lower heat to medium. In the same skillet, add 3 minced garlic cloves. Sauté for 1 minute until fragrant, stirring constantly to prevent burning. Garlic releases its oils quickly, forming the savory foundation for lemon garlic chicken pasta.

4-Fourth Step: Simmer the creamy lemon sauce
Pour in 1 cup heavy cream, stirring to scrape up browned bits. Add ½ cup grated Parmesan, zest and juice from 2 lemons, and ¼ tsp red pepper flakes. Bring to a gentle simmer and cook 3-4 minutes, stirring often, until sauce thickens slightly. Taste and adjust salt, pepper, or lemon for brightness. Fresh lemon zest adds oils for intense flavor; juice provides acidity to balance creaminess. If sauce seems too thick, splash in reserved pasta water.

5-Fifth Step: Combine and toss
Add cooked pasta and sliced chicken back to the skillet. Toss everything together over low heat for 1-2 minutes until pasta coats evenly in sauce and chicken warms through. Optional: Stir in 2 cups fresh spinach or peas here; they wilt quickly adding nutrition without sogginess. Remove from heat to prevent overcooking.

6-Final Step: Garnish and serve
Divide into bowls, sprinkle with chopped fresh parsley and extra Parmesan. Serve immediately with lemon wedges on the side for extra squeeze. Pairs beautifully with garlic bread or a simple salad. This one pot creamy lemon chicken pasta variation saves even more dishes by cooking pasta in the sauce last.