Place the salmon fillets on a plate. Rub ½ tablespoon olive oil on the fillets.
Top salmon fillets with oregano, paprika, black pepper, salt, garlic and lemon juice. Let it sit for 15 minutes.
Heat one tablespoon olive oil in a non stick pan over medium heat.
Once the oil is hot, place the salmon fillets skin side down in the pan. Sear untouched for about 4 minutes until the skin side starts looking opaque.
Flip and sear the other side until cooked.
Heat olive oil in a pan over medium heat.
Saute sliced onion until translucent.
Add in the tomatoes and cook so they start bursting.
Add in the spinach and cook until it's wilted. Season with salt and pepper.
