Creating Cowboy Butter Chicken Linguine is straightforward if you follow these easy-to-follow steps:

1. Cook the Linguine: In a large pot, bring salted water to a boil. Add the linguine and cook according to package instructions until al dente. Drain and set aside.
2. Prepare the Chicken: Season the chicken pieces with salt and pepper in a separate bowl.
3. Sauté Chicken: In a large skillet over medium heat, melt half of the butter. Add the seasoned chicken pieces and cook until they are golden brown and cooked through, about 5-7 minutes. Remove the chicken from the skillet and set aside.
4. Make the Sauce: In the same skillet, add the remaining butter. Once melted, add minced garlic and red pepper flakes (if using). Sauté for about 1-2 minutes until the garlic is fragrant but not browned.
5. Combine Ingredients: Return the chicken to the skillet. Add the cooked linguine, lemon zest, and lemon juice. Toss everything together until well combined.
6. Add Parsley: Stir in the chopped parsley and adjust the seasoning with salt and pepper as needed.
7. Serve Immediately: Remove from heat and plate the linguine. Top each serving with grated Parmesan cheese to finish.

These steps will guide you in creating an unforgettable Cowboy Butter Chicken Linguine that delights your taste buds and your dining companions.