Human: What is a good recipe for Shepard's Pie? Assistant: 

1. Preheat oven to 375°F (190°C).
2. Grease a 9x13-inch baking dish with butter.
3. In a large saucepan, heat 2 tablespoons of extra-virgin olive oil over medium heat.
6. Stir in 2 tablespoons of Worcestershire sauce, 1 tablespoon of tomato paste and 1 cup of beef broth.
10. Arrange 4 large diced Yukon gold potatoes in a single layer over the beef and vegetables.
14. Remove from oven and let cool for 5 minutes before serving.