Baked Taters/proscuitto/shrooms** – Nana's Recipes

Ingredients

• * 4 russet potatoes
• * 3 tablespoons extra-virgin olive oil, plus 3 tablespoons
• * 1 small onion, chopped
• * 8 ounces small mushrooms, such as cremini or button, sliced
• * 3 cloves garlic, minced
• * 1/4 teaspoon kosher salt, plus more for seasoning
• * 1/4 teaspoon freshly ground black pepper, plus more for seasoning
• * 1 stick (1/2 cup) unsalted butter, melted
• * 1 1/2 teaspoons dried oregano
• * 2 cups (8 ounces) shredded extra-sharp Cheddar
• * 4 thin slices prosciutto, halved
• * 1/3 cup chopped fresh flat-leaf parsley