sprinkle the salmon from one side with salt and pepper
heat up the oil in a big pan over medium-high heat and add the salmon, seasoned side down. Now sprinkle the other side with salt and pepper too
cook until bottom side is crisp, for around 3-4 minutes, flip around and cook for another 2-3 minutes
place cooked salmon on a plate and cover with tin foil
in the same pan add onion and garlic and cook for 2-3 minutes until soft and slightly brown
now add the spinach and cook until it has wilted
add sun-dried tomatoes, heavy cream, and milk and bring to a boil
cook for 2-3 minutes until the sauce starts to thicken
add the parmesan cheese, stir and cook for another 1-2 minutes until the sauce has desired consistency
add salt and pepper to taste and serve with pasta, rice, couscous, or bread