
Bring the water, olive oil, and a pinch of salt to a boil in a small saucepan. Add the pasta and cook until al dente according to the package directions. Drain, then briefly rinse under cool water to stop the cooking. Toss with lemon juice, lemon zest, salt, and black pepper, then set aside.



Pat the salmon fillets dry with paper towels. Season both sides evenly with salt, black pepper, paprika, and cayenne pepper.

Heat the butter in a skillet over medium heat. Once melted, add the salmon and cook for 4 to 6 minutes on the first side, basting with the butter as it cooks, until the fish is mostly opaque up the sides.



Flip the salmon and cook for 2 to 3 minutes more. Add a little lemon juice to the pan and spoon the buttery sauce over the salmon as it finishes cooking.


When the salmon is halfway done on the second side, add the diced onion and matchstick carrots to the skillet. Saute them in the pan sauce until just tender.



Divide the lemon pepper pasta between plates and top with the sauteed onion and carrots. Add the salmon, then finish with parsley flakes, a little extra lemon zest, and lemon slices if desired. Serve immediately.
