Burger with mushrooms and parmesan is a very tasty preparation, suitable for people who want to prepare a meatless burger. The burger will be ready in half an hour. Heat in a pan 1 tablespoon oil. Sauté mushrooms, onion and garlic over medium heat for 10 minutes until the liquid has evaporated. Put in a bowl from the pan and add the Parmesan cheese composition, breadcrumbs, eggs, parsley, oatmeal, oregano, salt and pepper. Mix well and then let composition stand 15 minutes. You need to get a composition that has a pattern your hands. Make patties flat as burgers in this composition. Heat 2 tablespoons of oil and then fry the meatballs.