3 porcini burgers tomato Recipes

vegetable oil, meaty veal bones (such as shank knuckle bones or neck bones), onion, chopped, carrot, chopped, celery stalk with leaves, chopped, cold water, divided, tomato paste, fresh parsley sprigs, fresh thyme sprigs, black peppercorns, dry red wine, water, dried porcini mushrooms,* broken into 1/2-inch pieces, ground sirloin, salt, ground black pepper, chilled unsalted butter, sourdough rolls , halved horizontally, fresh arugula, olive oil, thick slices gorgonzola cheese

tomato sauce, salt and pepper, crushed garlic, aged balsamic vinegar, light brown sugar, dried oregano, extra virgin olive oil, divided, carrot, chopped, onion, chopped, cremini mushrooms, chopped, fresh thyme, garlic cloves, finely chopped, salt and pepper, dried mushrooms , all porcini (1 small handful) or 1/3 cup mixed mushrooms (1 small handful), cooked brown lentils, cooked quinoa (for nuttier burgers) or 1 1/2 cups cooked cold couscous (for softer burgers), drained chickpeas, toasted pine nuts (or sliced almonds), currants or 1/4 cup chopped raisins, egg, provolone cheese, ciabatta or other crusty roll, split and lightly toasted, arugula, dressed lightly with lemon juice and extra virgin olive oil