Oven Roast Beef Stuffed With Potatoes Au Gratin

Roast beef is a classic dinner staple that every household eats now and then – probably on Sundays, if we had to guess! That means that you and your family probably already have a favorite way to prepare a big roast, as well as some delicious sides you usually serve with it. Well, we're here to give you some amazing new food for thought that you can chew over the next time you want to prepare your roast beef. Instead of cooking everything separately, why not try this roast beef stuffed with cheesy, creamy potatoes au gratin? Not only is your side dish baked right inside, nothing can beat this flavor combo! 

Yield: 1
Prep Time: 30 minutes
Cooking Time: 2 hours
Difficulty Level: Moderate


For the oven roast beef:

  • 1 head of garlic, roasted
  • 4 lb round beef roast
  • salt & pepper to taste
  • flour, egg, and garlic & herb bread crumbs for the breading

For the potatoes au gratin filling:

  • 2 cups heavy cream
  • 2 lbs waxy potatoes, peeled & sliced
  • salt & pepper to taste
  • 4 oz bacon, cooked
  • 6 oz cheese, grated


1. Roast the head of garlic in a preheated oven at 400°F for 20 minutes and then let cool. Season the round beef roast with salt and pepper and then sear on all sides in a large pan over medium heat. Rub the roasted garlic over the outside of the meat and let rest for 30 minutes. Make a deep pocket incision in the meat, about ¾ of the way down, making sure not to cut all the way through.

2. Carefully turn the piece of meat inside-out and place it over a tall, sturdy glass bottle.

3. For the potatoes au gratin, add the heavy cream and peeled & sliced potatoes to a saucepan over medium heat. Season with salt and pepper and let simmer for about 30 minutes, making sure to constantly stir the mixture. Once the mixture has thickened, crumble the cooked bacon into the saucepan, grate the cheese over the mixture, and and stir until the cheese has fully melted.

4. Turn the inside-out piece of meat over so that the opening is facing up, place the meat inside of a vase, and remove the glass bottle. Spoon the potatoes au gratin into the meat pocket and secure the opening with toothpicks. Season the outside of the meat with salt and pepper and dredge in flour, egg, and garlic & herb bread crumbs. Repeat the breading process once more so that it really sticks. Heat some cooking oil in a large oven-proof frying pan over medium heat and fry the breaded, stuffed roast beef on all sides. Transfer the frying pan to a preheated oven and cook at 350°F for 1 hour 20 minutes. Let the stuffed oven roast beef rest for 20 minutes before serving.

Easy to make, super satisfying, and so delicious – this oven roast beef stuffed with potatoes au gratin really has it all. We're pretty sure this mouthwatering recipe will go straight into the family cookbook once you give it a try!

Get the recipe for the Stuffed Rump Cap Roast featured in the bonus video.


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