Valerie's Stuffed Mushrooms Recipe | Valerie Bertinelli | Food Network

Ingredients

• 2 teaspoons extra-virgin olive oil
• 12 large white mushrooms, brushed clean, stems removed and reserved
• 1/2 cup baby spinach, finely chopped
• 1/2 onion, minced
• 2 cloves garlic, chopped
• 1/2 cup cherry tomatoes, finely chopped
• 2 tablespoons flat-leaf parsley, chopped
• 1/8 teaspoon salt, plus additional for sprinkling on mushroom caps
• Pinch freshly ground black pepper
• 3 tablespoons grated Pecorino Romano cheese
• 3 tablespoons panko (Japanese breadcrumbs)