Leftover pot roast just found its new favorite form: crispy, cheesy nachos. Caramelized onions, rich savory gravy, melt-in-your-mouth pot roast, and melty cheese are served over waffle fries for a bite that will having you coming back for more.

a plate of pot roast nachos

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Holly’s Recipe Highlights

Crispy fries loaded with tender beef, melty cheese, and a drizzle of gravy? Count me in!! It’s a cross between nachos and poutine and I am here for it.

  • Flavor: This recipe was inspired by my French Onion Pot Roast and has all the French Onion flavor you know and love including caramelized onions and a Gruyere cheese blend.
  • Skill Level: Easy, with one “hands-off” step while onions slowly caramelize.
  • Budget: Built for leftovers, and flexible with cheeses you already have.

Pot Roast Nacho Ingredients

  • Leftover Roast Beef: Any leftover beef here will do. Leftover pot roast, roast beef, steak, or prime rib will all work.
  • Onion: Slice evenly so it caramelizes at the same pace.
  • Waffle Fries: Swap for french fries, tortilla chips, or my personal favorite, kettle chips.
  • Cheese: Mozzarella gives you the perfect cheese pull and Gruyere adds a flavor that works perfectly with the leftover pot roast. Shred your own if possible for smoother melting.
  • Frozen Peas: Toss on straight from frozen. Leave off if you have pea-haters.
a close up of pot roast nachos

More Leftover Pot Roast Ideas

Leftover pot roast is one of those fridge finds that can turn into dinner in minutes.

Tuck it into warm rolls for quick sliders, serve as part of a baked potato bar, or layer it into a grilled cheese with melty cheese and a swipe of horseradish sauce. Stir chopped beef into beef barley soup, fold it into a creamy stroganoff.

It’s also great in tacos, quesadillas, or a simple hash with potatoes and onions, and if you still have extra, freeze portions with a little gravy so the next meal is just a reheat away.

image of Everyday Comfort cookbook by Holly Nilsson of Spend With Pennies plus text
a close up of pot roast nachos
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Pot Roast Nachos

Servings 8 servings
Crispy waffle fries piled with tender leftover pot roast, caramelized onions, melty cheese, and peas, finished with warm beef gravy and horseradish sauce.
Servings 8 servings
Prep Time 15 minutes
Cook Time 40 minutes
Total Time 55 minutes
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Ingredients  

  • 2 tablespoons butter
  • 1 large sweet onion or yellow onion, sliced ¼-inch
  • 2 (24 ounce each) bags waffle fries
  • 2 cups cooked beef pot roast, leftover steak, prime rib etc, chopped or shredded
  • cups shredded mozzarella cheese
  • ½ cup shredded gruyere cheese or provolone, or additional mozzarella cheese
  • ½ cup frozen peas
  • 1 cup beef gravy
  • ½ cup horseradish sauce

Instructions 

  • Preheat the oven to 425°F.
  • Add the butter and onion to a medium skillet over medium-low heat. Once the butter has melted, reduce the heat to low, stirring occasionally, cooking until the onion is golden brown, about 20 minutes.
  • Meanwhile, on a large rimmed baking sheet, spread the waffle fries into a single layer. Bake for 30 minutes or until crisp.
  • Remove the waffle fries from the oven and top with the beef, caramelized onion, cheese, and frozen peas. Bake for an additional 10 to 12 minutes.
  • Pour gravy overtop and serve with horseradish sauce.
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Nutrition Information

Calories: 687 | Carbohydrates: 59g | Protein: 26g | Fat: 39g | Saturated Fat: 15g | Polyunsaturated Fat: 2g | Monounsaturated Fat: 19g | Trans Fat: 0.1g | Cholesterol: 74mg | Sodium: 1292mg | Potassium: 1060mg | Fiber: 9g | Sugar: 5g | Vitamin A: 378IU | Vitamin C: 20mg | Calcium: 233mg | Iron: 4mg

Nutrition information provided is an estimate and will vary based on cooking methods and brands of ingredients used.

Course Appetizer
Cuisine American

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About the author

Holly Nilsson is the creator of Spend With Pennies, where she creates easy, comforting recipes made for real life. She is also the author of “Everyday Comfort,” which promises to inspire even more hearty, home-cooked meals.
See more posts by Holly

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