Salmon with Spinach

Preparation

1. Heat 1 tablespoon of olive oil in a large skillet on medium-high heat.
2. Season salmon fillet with salt.
3. When the oil is hot, add the salmon fillet flesh side down. Sear for about 4 minutes on medium-high heat.
4. Reduce heat to medium.
5. Flip the salmon fillets to the other side. Sear for another 4 or 5 minutes on medium heat until salmon is flaky.
6. Remove salmon from the skillet.
7. To the same, now empty, skillet, add the spinach and the chopped onion.
8. Continue cooking and stirring until the spinach wilts, for a couple of minutes. Add the walnuts. Season with salt if needed.
9. Assembly. Add pan-seared salmon on top of the spinach and serve.