Seared Salmon with Wilted Spinach

Salmon fillet cut into thicker slices will give the best results.
Preheat the oven to 450 degrees.Sprinkle the salmon with 1/2 teaspoon salt and 1/8 teaspoon pepper. Preheat a large cast-iron skillet over high heat. Add 2 teaspoons of oil; stir to combine. Lay out the fillets, skin side down; cook for 3 minutes or until the skin begins to brown, pressing the fillets lightly. Place the baking sheet in the oven. Bake at 450 ° C for 6 minutes or until the desired degree of readiness.Preheat a nonstick skillet over medium-high heat. Add 1 teaspoon of oil; stir to combine. Add tomatoes; simmer for 1 minute. Add the garlic; simmer for 30 seconds, stirring constantly. Add spinach; remove from heat. Stir until the spinach wilts. Add 1/4 teaspoon salt and 1/8 teaspoon pepper. Place about 1/2 cup of the spinach mixture on each of 4 plates; garnish each serving with 1 fillet and basil.