In a small bowl mix 2 tablespoons of tahini paste with the lemon juice. It will start to thicken. Gradually add the water till you have the consistency of thick honey.Mix in the crushed garlic and cilantro and salt to taste.
Toast the pine nuts
Smear a little olive oil in a frying pan enough to cover the base and toast pine nuts for about three minutes, stirring frequently to make sure they are evenly cooked. Set aside
Sear Fish
Rinse a boneless, skinless fillet with cold water and pat dry with a paper towels. Season both sides with salt and pepper.
Heat just enough olive oil to barely coat the bottom of the pan over medium-high heat.
Place fillet in pan and cook for about 3 minutes per side or until the fish flakes easily with a fork.
Plate filets, cover generously with tahini sauce, garnish with the nuts and serve alone or on a bed of steamed spinach for contrast and flavor.