For the salmon: Brush the flesh side of the salmon with olive oil. Sprinkle with the lemon zest, thyme, mint, and salt and pepper. Heat 1 tablespoon of oil in a large nonstick skillet over medium-high heat. Add the salmon skin side down. Cover, reduce the heat to medium, and cook without turning until the fish is opaque on top and just cooked through, about 8 minutes.