Rinse lentils cold and cook in boiling water for about 30 minutes. In the meantime, roast pine nuts in a pan without fat until golden brown. Let them cool down on a flat plate.
Peel the pumpkin and parsnip. Cut pumpkin into small cubes, parsnip into strips of about 3 cm. Wash flesh, dab dry. Heat 2 tablespoons of oil in a large coated pan. Fry the meat for 10-15 minutes at medium heat, turning the meat.
Season with cumin, salt and pepper.
In the meantime heat 1 tablespoon of oil in a frying pan. Fry the pumpkin and parsnip for about 5 minutes, turning them over. Drain the lentils and stir into the vegetables with maple syrup. Season to taste with salt, nutmeg and pepper.
Cut meat into slices and arrange on plates with the vegetables. Sprinkle with pine nuts. Possibly garnish with oregano.