Cut pork into eight slices, approximately 3/4 inch thick. Sprinkle lightly with salt and pepper. Drizzle with 1 teaspoon olive oil and rub surface of pork with the olive oil so it is lightly coated.
Chop mango into approximately 1/4 inch cubes.
Mix together mango, cilantro, green parts of scallion, lime zest, lime juice, red pepper flakes, 1/16 to 1/8 teaspoon salt and 1 teaspoon of olive oil.
Sauté pork in oil in large skillet until cooked and remove pork from skillet.
Return skillet to heat and add whites of scallion. Cook for one minute. Add orange juice. Cook and stir, scraping up brown bits from pan. Boil until slightly thickened.
Return pork to skillet, turning to coat with glaze. Spoon remaining glaze on top of pork.
Serve with salsa.