Skillet Shepherd’s Pie By Fine Cooking

Ingredients

• Kosher salt
• 2 large russet potatoes (about 1-1/2 lb. total), peeled and cut into 1-inch pieces
• 1/2 cup mascarpone
• 2 Tbs. unsalted butter
• Freshly ground black pepper
• 1 Tbs. olive oil
• 1/2 cup finely chopped sweet onion
• 1 Tbs. finely chopped garlic
• 1 lb. ground lamb
• 1 Tbs. finely chopped fresh rosemary
• 2 Tbs. all-purpose flour
• 1 cup lower-salt beef broth
• 1-1/2 cups thawed frozen peas
• 1 Tbs. finely chopped fresh mint
• 3 oz. grated sharp Cheddar (about 1 cup)
• Hot sauce, such as Cholula, for serving (optional)