Transform leftover roast beef into a delightful, crispy, and cheesy quesadilla with this easy and satisfying recipe. Perfect for repurposing holiday leftovers or a quick weeknight dinner, this dish combines tender beef, melted cheese, and your favorite toppings for a crowd-pleasing meal that's ready in just minutes.
Ingredients
- 2 large flour tortillas
- 1 cup shredded cheddar cheese
- 1 cup leftover roast beef, thinly sliced or shredded
- 1 small onion, thinly sliced
- 1 jalapeño, seeded and thinly sliced (optional)
- 2 tbsp olive oil
- Salt and pepper, to taste
- Toppings of your choice: sour cream, guacamole, salsa, fresh cilantro, lime wedges
Instructions
Heat 1 tbsp of olive oil in a large non-stick skillet over medium heat. Add the sliced onions and jalapeño (if using), and cook until softened, about 3-5 minutes. Season with salt and pepper, then transfer the onions to a plate.
In the same skillet, add the remaining 1 tbsp of olive oil. Place one tortilla in the skillet and sprinkle half of the shredded cheese evenly over the tortilla. Top with the cooked onions, sliced roast beef, and the remaining cheese. Place the second tortilla on top.

Cook the quesadilla for 2-3 minutes, or until the bottom tortilla is golden brown and the cheese starts to melt. Carefully flip the quesadilla using a spatula and cook for an additional 2-3 minutes, or until the second side is golden brown and the cheese is fully melted.
Transfer the quesadilla to a cutting board and let it rest for a minute before slicing it into wedges. Serve the quesadilla hot, accompanied by your choice of toppings.
Nutrition Information
| Serving Size | Calories | Total Fat | Saturated Fat | Cholesterol | Sodium | Total Carbohydrate | Dietary Fiber | Sugars | Protein |
|---|---|---|---|---|---|---|---|---|---|
| 1/4 of the quesadilla | 370 | 20g | 7g | 55mg | 760mg | 27g | 2g | 1g | 24g |
This leftover roast beef quesadilla recipe is not only delicious but also a practical way to repurpose leftovers, reducing food waste and saving you time and money. Enjoy this versatile dish for a quick and satisfying meal that's perfect for any occasion.
























