Mushroom Veggie Burger

Ingredients (11)

• + 2 tablespoons olive oil add to pantry
• + 3 (8 ounce) packages sliced fresh mushrooms add to pantry
• ✓ ½ onion, finely chopped
• ✓ 4 cloves garlic, minced
• + 1 teaspoon salt add to pantry
• + ½ teaspoon black pepper add to pantry
• + ½ teaspoon dried oregano add to pantry
• + ⅔ cup rolled oats add to pantry
• + ¾ cup dry bread crumbs add to pantry
• ✓ 2 eggs, beaten
• + ½ cup freshly shredded Parmigiano-Reggiano cheese add to pantry