Salmon Fillets with Squid Ink Tagliatelle and Baby Basil

Cook tagliatelle in boiling salted water until al dente. Rinse and pat dry salmon, cut into four equal portions. Season with salt and pepper. Heat 2 tablespoons of oil in a grill pan and cook salmon for 2-3 minutes per side on low heat. Peel and halve onion, cut into strips. Heat remaining oil in a pan and saute onion with lemon zest for 2-3 minutes.