![](https://www.pinterest.com/pin/create/button/?url=https://blythesblog.com/recipe/leftover-roast-beef-shepherds-pie/&media=https://i0.wp.com/blythesblog.com/wp-content/uploads/2026/01/IMG_5725.jpeg?resize=800%2C800&ssl=1&description=My daughter, Grace, has mastered the art of the culinary "second act." She brilliantly transforms leftover roast beef and mashed potatoes into a Roast Beef Shepherd’s Pie - and while the purists might call it a Cottage Pie because of the beef, in our house, it’s simply a family classic. Her addition of sharp cheddar cheese to the mashed potatoes creates a tangy, golden crust that ties the whole dish together. data-pin-do=)
Leftover Roast Beef Shepherd’s Pie
January 25, 2026
My daughter, Grace, has mastered the art of the culinary "second act." She brilliantly transforms leftover roast beef and mashed potatoes into a Roast Beef Shepherd’s Pie - and while the purists might call it a Cottage Pie because of the beef, in our house, it’s simply a family classic. Her addition of sharp cheddar cheese to the mashed potatoes creates a tangy, golden crust that ties the whole dish together.
- Prep: 15 mins
- Cook: 30 mins
- Yields: 6 Servings
Directions
1Preheat the oven to 375° F.
2Cube the beef and mix it with peas, carrots, gravy, garlic, and onion.
3Spread the beef mixture in the bottom of a 10×10 baking dish or a pie dish.
4Stir the cheese into the mashed potatoes. Top the beef mixture with the mashed potatoes and use an offset spatula to smooth them out.
5Bake for 25-30 minutes or until heated through, and serve.
Note
1You can substitute cheddar cheese with Parmesan cheese.
2Warm the mashed potatoes to spread them more easily. Just a few minutes in the microwave.
3You can add other leftover veggies like asparagus, broccoli, corn, mushrooms, and zucchini.
4If you’re using fresh carrots, peel them, slice them thin, and parboil for 3 minutes in salted water.
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