This is a very quick and easy dish to prepare. Start by placing the mixed peppers on a baking tray and drizzle over the olive oil. Season well with salt and pepper and place under a hot grill to cook the peppers. You can alternatively cook the peppers on a hot plate or griddle pan. When ready, remove the baking tray from the oven and spoon the spicy salsa over the cooked peppers. Pile the tortilla chips on top of the salsa and sprinkle over the green jalapenos. Finally, sprinkle over the grated mexicana cheese. Place the tray under a hot grill again, just for a couple of minutes to melt the cheese. Meanwhile, place the mixed salad leaves in the middle of 2 large deep serving plates. Remove the tray with the melted cheese tortillas from out of the oven and pile this mixture over the salad leaves in the 2 serving plates. Just before serving, spoon over some sour cream and sprinkle with some chopped parsley.