To peel and chop a mango, cut a small slice from the top and bottom of the fruit to make flat ends. Using a vegetable peeler, carefully peel away the skin. Stand mango upright on a cutting board. Using a chef’s knife, run the blade through the flesh, taking approximately three slices from each of the four sides. When you are close to the stone, use a paring knife to remove any remaining flesh from around the middle.   Pumpkin seeds provide an impressive array of nutrients. They contain healthy poly- and monounsaturated fats, protein, fiber, iron, magnesium, potassium, zinc, manganese, thiamine (vitamin B1) and vitamin E — not bad for the seeds of a common squash.