Nan's Shepherd's Pie Recipe | Epicurious

Ingredients

• 4 large russet potatoes (2 1/2 pounds)
• 2 pounds (85% lean) ground sirloin
• 3 tablespoons extra-virgin olive oil
• 2 large onions (1 pound total), chopped
• 1 large garlic clove, smashed, peeled and finely chopped
• 1 (15 ounce) can tomato puree
• 1/4 teaspoon cayenne pepper
• 1 1/2 cups frozen petit peas (half of a 1-pound bag), thawed
• 3/4 cup half-and-half
• 1 teaspoon kosher salt
• Freshly ground black pepper
• 1 cup (packed) shredded reduced-fat extra-sharp cheddar cheese (4 ounces)