Put a large cast iron pan over high heat. Season both sides of the fish with salt. Add the remaining 1/4 cup blended oil to the hot pan and add the seasoned fish (presentation side down first). Allow to cook until golden brown on first side, about 2 to 3 minutes. Flip and turn the heat off.
In a small bowl add the pea shoots and drizzle with extra-virgin olive oil. Put 2 salmon fillets onto each plate and top with the peas and pancetta. Drizzle the sauce around the salmon and garnish with the pea shoots and orange zest. Sprinkle with fleur de sel and serve.