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I am always grateful when you stop by and check out this delicious Roast Beef Po Boy.

If you love New Orleans food, you have landed on the perfect post.  The first time I had a Roast Beef Po Boy was while living in New Orleans.  They made the Best Roast Beef sandwich ever.  I had to try to duplicate it.




A New Orleans Roast Beef Po Boy starts by cooking the roast beef low and slow in the oven.  Cajuns use all the bits and pieces to make debris.  They first make a delicious gravy out of the dripping from the roast and add small pieces of the roast into the gravy.  They serve this Debris on a New Orleans Roast Beef Debris Po-Boy.

A Roast Beef Po Boy is layered with goodness.

The bread they serve the Po Boy on is always French bread.  You normally get a six or twelve inch Po Boy. They slice the French bread lengthwise. Generously, add mayonnaise on the top and bottom part of the bread. My husband likes to add a little horseradish on one side. Next, they layer cheese, Swiss cheese generally, on one side of the French Bread.  The cheese is covered with a generous portion of hot roast beef debris.

Top Half Of The French Bread

On the other side of the Roast Beef Po Boy, they add shredded lettuce and fresh slices of tomato with some salt, pepper and Cajun Seasoning.  It is extremely messy and typically requires a knife and fork instead of picking it up.  Messy or not a New Orleans Roast Beef Po Boy is out of this world.  The bread absorbs a lot of the gravy, and it is truly yumminess.  My favorite place to eat a New Orleans Roast Beef Po Boy is Bear’s Restaurant in Covington, Louisiana.

For my homemade version of a Roast Beef Po Boy, I cook the roast beef on low for ten hours in a slow cooker.   See my Slow Cooker Roast Beef Recipe HERE.CAJUN ROAST BEEF PO BOY NEW ORLEANS STYLE


This Roast Beef Will Fall Apart!

After cooking the roast in the slow cooker, it will fall apart or separate easily with two forks.  Next, I chop it up into small pieces and make a gravy using the incredibly tasty broth the roast cooked in.  New Orleans Gravy is thinner than the gravy I make.  Although I like making my gravy a little thicker I do use the liquid from the roast to make the gravy.

Do Not Skip The Gravy

After layering the Swiss cheese and adding the roast beef, I add the gravy on top of the chopped roast.  It is a little less messy this way, but I serve additional broth from the slow cooker.  This way, you can dip the sandwiches into it.  This Roast Beef Po Boy can still be messy, but it is so worth it.  It is seriously finger, licking good.

If you need some Louisiana restaurant reviews, check out my new blog at Our American Travels.

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Print Recipe
4.5 from 4 votes

Roast Beef Po Boy - New Orleans

Prep Time5 hrs 30 mins
Cook Time5 hrs 30 mins
Course: Sandwich/Po Boy
Cuisine: Cajun
Author: Diane Roark @Recipes for our Daily Bread


  • 6 inch French Bread
  • 1/2 cup Roast Beef Debris - See my Slow Cooker Roast Beef Debris recipe on blog)
  • Mayonnaise
  • 2 Slices Swiss Cheese
  • 1/2 cup shredded lettuce
  • 2 slices fresh tomatoes
  • Salt Pepper & Cajun seasoning to taste
  • GRAVY:
  • 1/4 cup vegetable oil
  • 1/4 cup all-purpose flour
  • 4 cups beef broth from the slow cooker the roast cooked in.


  • Cut the French Bread in half lengthwise
  • Spread Mayonnaise on both sides of the bread.
  • On the bottom side, add two pieces of slice cheese.
  • Add 1/2 cup of chopped roast beef.
  • Top the roast beef with hot gravy.
  • On the top half of the French Bread, add 1/2 cup shredded lettuce.
  • Top the lettuce with two slices of fresh tomato.
  • Season as desired with salt, pepper and Cajun season.
  • Heat oil in a skillet.
  • Whisk in 1/4 cup of flour.
  • Stir and cook until light brown.
  • Slowly whisk in the beef broth the roast was cooking in.  It is a must to use the beef broth from the roast.  It is loaded in seasonings.


It is a must to use the beef broth from my slow cooker roast.  It is loaded in seasonings.

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8 thoughts on “CAJUN ROAST BEEF PO BOY”

  1. 5 stars
    Oh WOW what a treat. This sparks some recent memories! 9-10 months ago we went to a beach not too far from New Orleans, I believe it was called Holly/Holy Beach, anyway, there was a family staying in an RV and the father made me a Po’ Boy just like this one!! Since then I tried replicating the recipe but I never managed to come close. Until today. Oh god. My mouth is watering as I write this comment.

  2. 5 stars
    Just tried this recipe and I went to HEAVEN and back again. I used the freshest french bread I could find, and dove right in. People you seriously have to try this recipe. As a New Orleans native I can honestly say that the flavors in this sandwich encapsulates the essence of a New Orleans style Roast Beef.

    • Jonathan,

      You made my day! Thank you for taking the time to let me know what you think about my Roast Beef Po Boys. We live 7 years in Mandeville, LA and love it especially the food. That is where my love for cooking really took off.
      Thanks again for taking the time to comment.
      Many blessings,

  3. 4 stars
    Here in New Orleans we “dress” our Po Boys…lettuce, tomatoes, sliced pickles and mayo. And you gotta have a Barq’s rootbeer. Try it next time with your Po Boy ! The recipe sounds good, but the traditional New Orleans style roastbeef Po Boy is not made with rosemary, thyme, marjoram or oregano….and not bay leaves. The traditional recipe calls for more minced garlic in the gravy, AND we stuff our roasts with cloves of garlic while it is baking in the oven. Try it .. you’ll be hooked !
    Enjoy !

    • Bee,

      Thank you for stopping by and talking to me about the traditional New Orleans Style roast beef PoBoy. We truly love this sandwich! My family and I lived on the Northshore for 7 years where I fell in love with the food. I learned how to cook so many amazing recipes. I am also from Mobile, AL and grew up eating a lot of Cajun food. I totally get the Barq’s rootbeer. I LOVE IT AND drink it often. I discovered everyone in New Orleans bakes their roast but I love my slow cooker and wanted to try making a similar version in it. I am always looking for an easier way to prepare food. By using my slow cooker you do not have to watch it. I will have to try making the roast in the oven one day to see the difference. It will probably kick it up even more. You are the best! Thank you again for taking the time to leave me a comment.

  4. Oh, Diane, I want a big ole bite of this sandwich in the worst way! This looks sssooooo good and the seasoning looks amazing. Call me over next time you make one please! Carrie, A Mothers Shadow

  5. Like I said to roast beef generally is more Kevin’s thing, but still pinning to share with him and sure he will most likely want to try this soon. So thank you again, Diane 😉


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