How to Make the Ultimate Shake Shack Shroom Burger at Home

Ingredients

• 4 large portobello mushrooms (about 5-6 inches in diameter)
• 4 ounces mozzarella cheese, sliced (113 g)
• Salt and pepper, to taste
• 1 cup all-purpose flour (120 g)
• 2 large eggs, beaten
• 1 cup panko breadcrumbs (120 g)
• 1 teaspoon garlic powder
• 1 teaspoon onion powder
• Oil, for frying (vegetable or canola)
• 4 burger buns, toasted
• 4 leaves of Romaine lettuce
• 1 large tomato, sliced
• Shack Sauce (homemade or store-bought)