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Leftover Roast Beef Shepherd’s Pie

This recipe is perfect for you if you have a dilemma about what to do with your Sunday roast beef dinner leftovers. This Leftover Roast Beef Shepherd’s Pie combines all of them! From the mashed potatoes and leftover veggies to the gravy, this easy dish can be 100% leftovers!

Leftover Roast Beef Shepherd's Pie in a cast iron dish.

You’ll love sinking your fork into each bite of this Leftover Roast Beef Shepherd’s Pie. The crust is buttery mashed potatoes covered with cheese, then bites of roast beef with carrots and peas covered in your best gravy.

Since most of the ingredients are leftovers, all of the prep for this recipe is mostly done. It’s an easy weeknight meal that only requires you to chop the beef, mix it with your leftover veggies, and spread the mashed potatoes over it.

I have a few recipes that use leftover roast beef. Try them out: Leftover Roast Beef Pot Pie and Leftover Roast Beef Yorkshire Pudding Pie.   

Your family will be all smiles eating this delicious meal!

Finished Leftover Roast Beef Shepherd's pie.
Serve when hot and bubbly.

WHAT YOU’LL LOVE ABOUT LEFTOVER ROAST BEEF SHEPHERD’S PIE 


  • It’s a perfect and delicious way to repurpose leftovers!
  • This is a budget-friendly meal that tastes great with any kind of leftover beef.
  • So easy to make! Everything is pretty much already prepped and cooked you, just need to assemble and heat!

INGREDIENTS

  • Mashed potatoes – Can use leftover or make fresh.
  • Leftover roast beef – Use leftover pot roast, ribeye, eye of round, or whatever you’ve got!
  • Peas – Frozen is fine.
  • Carrots – Fresh, frozen, or leftovers.
  • Gravy – Leftover gravy or use a packet of gravy mix.
  • Cheddar cheese – Shredded.
  • Dehydrated garlic –  Or use garlic powder. 
  • Dehydrated onion – Or use onion powder. 
Ingredients to make Leftover Roast Beef Shepherd's Pie.

HOW TO MAKE THE BEST LEFTOVER ROAST BEEF SHEPHERD’S PIE

For a full list of ingredients and instructions, please scroll down to the recipe near the bottom of this page.

  1. Preheat the oven to 375 degrees F.
  2. Cube the beef and mix it with peas, carrots, gravy, dehydrated garlic, and dehydrated onion. 
  3. Spread the mixture in the bottom of a 10×10 baking dish.
  4. Top with mashed potatoes and use an offset spatula to smooth them out.
  5. Top the mashed potatoes with shredded cheddar.
  6. Bake for 25-30 mins or until hot and bubbly and serve.

CHEF JENN’S TIPS

  • You can substitute cheddar cheese with Parmesan cheese, white cheddar, or marble cheese. 
  • Warm the mashed potatoes to spread them more easily. Just a few minutes in the microwave will do the trick. 
  • You can add other leftover veggies like asparagus, broccoli, corn, mushrooms, and zucchini. 
  • You can use a gravy mix instead of leftover gravy. Prepare it according to the package directions.
  • If you’re using fresh carrots, peel them, slice them thin, and parboil for 3 minutes in salted water.
  • You can substitute the dehydrated garlic for ½ teaspoon of garlic powder and 1 teaspoon of onion powder instead of dehydrated onion.
Leftover Roast Beef Shepherd's Pie in a baking dish.

MAKE IT A MEAL

This comforting dish is a meal all on its own! You can pair it with some tasty nibbles like garlic bread or Yorkshire pudding. A light side, like a classic Caesar Salad or garden vegetable salad with Balsamic Dressing, always goes well with Shepherd’s Pie. If you’re itching for a dessert, serve these Smoked Peaches; they’re simple to make. And to drink? Try this floral Lavender Spritz cocktail.

STORAGE

Store any Leftover Roast Beef Shepherd’s Pie in an airtight container for 3-4 days. This meal also stores beautifully in the freezer for up to 3 months. Unthaw at room temperature and then bake at 375 degrees F for 25-30 mins or until heated through, and serve.

Step By Step Process

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Leftover Roast Beef Shepherd's Pie in a cast iron dish.
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4.54 from 47 votes

Leftover Roast Beef Shepherd’s Pie

This recipe is perfect for you if you have a dilemma about what to do with your Sunday roast beef dinner leftovers. This Leftover Roast Beef Shepherd’s Pie combines all of them, fom the mashed potatoes, and leftover veggies, to the gravy!
Course Main Course
Cuisine American
Keyword beef, leftover roast beef, shepherd’s pie
Prep Time 10 minutes
Cook Time 30 minutes
Total Time 40 minutes
Servings 6 servings
Calories 447kcal
Author Chef Jenn

Ingredients

  • 3 cups mashed potatoes
  • 3 cups leftover roast beef
  • 1/2 cup peas
  • 1 cup carrots
  • 1.5 cups gravy
  • 1 cup cheddar cheese shredded
  • 1 teaspoon dehydrated garlic or use 1/2 teaspoon garlic powder
  • 2 teaspoons dehydrated onion or use 1 teaspoon onion powder

Instructions

  • Preheat the oven to 375 degrees F.
  • Cube the beef and mix it with peas, carrots, gravy, dehydrated garlic, and onion.
  • Spread the beef mixture in the bottom of a 10×10 baking dish.
  • Top the beef mixture with mashed potatoes and use an offset spatula to smooth them out.
  • Top the mashed potatoes with shredded cheddar cheese.
  • Bake for 25-30 mins or until heated through, and serve.

Notes

CHEF JENN’S TIPS

  • You can substitute cheddar cheese with Parmesan cheese, white cheddar, or marble cheese. 
  • Warm the mashed potato to spread them more easily. Just a few minutes in the microwave. 
  • You can add other leftover veggies like asparagus, broccoli, corn, mushrooms, and zucchini. 
  • You can use a gravy mix instead of leftover gravy. 
  • If you’re using fresh carrots, peel them, slice them thin, and parboil for 3 minutes in salted water.

Nutrition

Serving: 1.5cups | Calories: 447kcal | Carbohydrates: 33g | Protein: 32g | Fat: 21g | Saturated Fat: 10g | Polyunsaturated Fat: 1g | Monounsaturated Fat: 8g | Trans Fat: 1g | Cholesterol: 105mg | Sodium: 536mg | Potassium: 867mg | Fiber: 3g | Sugar: 4g | Vitamin A: 3864IU | Vitamin C: 32mg | Calcium: 176mg | Iron: 3mg

A Note on Nutritional Information

Nutritional information for this recipe is provided as a courtesy and is calculated based on available online ingredient information. It is only an approximate value. The accuracy of the nutritional information for any recipe on this site cannot be guaranteed.

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7 thoughts on “Leftover Roast Beef Shepherd’s Pie”

  1. 5 stars
    This is brilliant! I have a family that dislikes leftovers and this recipe keeps us from wasting food. They don’t know they’re eating leftovers and I don’t tell them. It’s just as tasty as if it were all made fresh.

    Reply
  2. 5 stars
    This leftover roast beef shepherd’s pie is indeed bursting with flavors! My fam never thought that I used leftover roast beef! Such a satisfying and filling breakfast!

    Reply
  3. 5 stars
    This recipe was surely a hit at our family dinner! The ingredients really complement each other well, plus I love how easy and convenient it is to make. It’s a must-try recipe!

    Reply
    • True, anyone with Irish blood in them knows Cottage Pie is made with beef, Shepherd’s Pie is made with lamb. However, for the non Irish folk out there, they know this as Shepherd’s Pie. I just call it delicious 🙂
      ~Jenn

      Reply
4.54 from 47 votes (42 ratings without comment)

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