Creamy Pasta with Prosciutto Cotto and Sweet Peas in Rich Cream Sauce - ioanacooks

Ingredients

• 2 tablespoons unsalted butter
• 1 small yellow onion (6 oz), finely chopped
• Kosher salt and freshly ground black pepper
• 8 oz prosciutto cotto, cut into 1/4-inch dice
• 2 teaspoons minced fresh rosemary leaves
• 2 teaspoons minced fresh thyme leaves
• 1/4 cup dry white wine
• 1 1/2 cups heavy cream
• 1/4 teaspoon freshly ground nutmeg
• 12 oz dried penne rigate
• 1 1/2 cups frozen peas, thawed
• 2 oz finely grated Parmigiano-Reggiano