Heat oven to 300 degrees. Wrap tortillas in aluminum foil. Set aside.
In a small bowl, whisk together vegetable oil, turmeric and cumin. Set aside.
Trim NY strip of any large pieces of fat. Season well with fine sea salt and freshly ground pepper. You can either grill your steak or cook it on the stovetop. For stove top, heat a large, seasoned cast iron skillet over high heat until almost smoking. Place NY strip in pan, searing on each side for 3-4 minutes for medium rare. For grilling, preheat grill to medium-high and grill on direct heat for 3-4 minutes on each side.
Remove and allow to rest for 5 minutes. Thinly slice against the grain.
Meanwhile, heat tortillas in the oven for 5 minutes. Remove and baste each on just one side with vegetable oil and spice mixture.
To assemble, place a leaf of Bibb lettuce over the side of tortilla that was basted. Top with 2-3 thin slices of beef, 1 tablespoon of mango salsa, a generous pinch of red cabbage and sprinkle of queso fresco.
If you've tried this recipe, come back and let us know how it was!