To take a casserole from the heavy fund and to put inside it the pineapple, the onion, the mango, the cinnamon, the ginger, the nails of carnation, the bark and the juice of lemon and the laurel. To cook the all covered for about 45 minutes (fruit must have become tender). In case that the composed attacks to the frying pan to add some spoon of water. Once ready to remove the laurel, the cinnamon and the nails of carnation. To introduce the sauce of chinese peperoncino, to mix for about 1 minute and to cool. To take a bowl and, adding the white of egg, to mix the meat with the walnuts, the mushrooms, the salt, the pepper of caienna and that normal. To model 4 medaillons thick 1 centimeter and to put them in refrigerator for about 20 minutes. Using a grill the medallions can be cooked 8-10 minutes for part; to brown them. Few before is cooked the medaillons to toast the sandwiches and to cover them with some watercress and some lettuce, to add the medaillon and to cover them definitely with the other half of the sandwich also toasted. To serve immediately with the composed of fruit.