First, cook your linguine according to the package instructions. I like to salt the water generously—it seasons the pasta perfectly. Drain and set aside while you prepare the chicken and veggies.
Heat 1 tablespoon of olive oil in a skillet over medium-high heat. Add the sliced chicken and cook until it’s no longer pink inside. Removing it once cooked keeps it juicy for the final mix.
In the same skillet, add 1 tablespoon of olive oil. Sauté the red and green peppers and red onion until they’re tender but still slightly crisp. This gives a perfect texture contrast with the chicken.
Return the chicken to the skillet and add the cooked pasta, pesto, remaining olive oil, pine nuts, and half of the Parmesan. Toss everything gently over medium heat until well coated and warmed through.
Top with the remaining Parmesan before serving. I like a few extra pine nuts on top for crunch and a drizzle of olive oil for gloss.