
Why You’ll Love This Recipe
This roast beef sandwich is the perfect balance of savory roast beef, tangy condiments, and crunchy vegetables. The rich, juicy beef pairs beautifully with the softness of the bread, while mustard or horseradish adds a zesty kick. The optional cheese melts perfectly into the sandwich, adding even more flavor. Whether you prefer a classic version or want to add a bit of creativity, this roast beef sandwich is versatile and always delicious.
Ingredients
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2 slices of your favorite bread (sourdough, whole grain, rye, or a baguette)
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4–6 slices of roast beef (deli-style)
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1–2 slices of cheese (Swiss, cheddar, or provolone)
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1 tablespoon Dijon mustard or horseradish sauce (optional)
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1/4 red onion, thinly sliced (optional)
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Lettuce or spinach leaves (optional)
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1–2 tomato slices (optional)
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Pickles (optional)
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Salt and pepper to taste
(Tip: You’ll find the full list of ingredients and measurements in the recipe card below.)
Directions
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Begin by spreading Dijon mustard or horseradish sauce (if using) on one or both slices of bread.
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Layer the roast beef on one slice of bread, arranging it evenly across the slice.
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Add your cheese slices on top of the beef.
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If you’re adding vegetables, layer the lettuce, tomato, red onion, and pickles on top of the beef and cheese.
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Season with a pinch of salt and pepper.
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Place the second slice of bread on top to complete the sandwich.
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Press down gently, slice the sandwich in half, and serve immediately.
Servings and timing
This recipe makes 1 sandwich and takes about 10 minutes to prepare.
Variations
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Grilled version: Toast the bread or grill the sandwich to melt the cheese and add extra crunch to the bread.
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Different spreads: Swap the Dijon mustard or horseradish sauce for barbecue sauce, mayonnaise, or even a pesto spread for a new twist.
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Add extras: For extra flavor, you can add roasted peppers, mushrooms, or a slice of bacon.
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Use a different cheese: Try blue cheese, gouda, or mozzarella for a different flavor profile.
Storage/reheating
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Storage: Store leftover roast beef in an airtight container in the refrigerator for up to 3 days. If you’ve already assembled the sandwich, it’s best to store the components separately to keep the bread fresh.
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Reheating: If you have leftover roast beef, you can heat it in the microwave or warm it up on a skillet before assembling the sandwich. For grilled sandwiches, you can reheat them in a pan or grill to regain the crunch and melty cheese.
FAQs
1. Can I use leftover roast beef for this sandwich?
Yes! Leftover roast beef works great for this sandwich, especially if it’s already seasoned and cooked to perfection.
2. What bread is best for a roast beef sandwich?
Sourdough, rye, whole grain, or a baguette are all excellent choices. Pick a hearty bread to complement the richness of the roast beef.
3. Can I add cheese to this sandwich?
Absolutely! Swiss, cheddar, provolone, and mozzarella are popular cheese options for roast beef sandwiches. You can melt it by grilling the sandwich or simply add it cold.
4. How can I add some spice to this sandwich?
For a spicy kick, try adding jalapeños, spicy mustard, or hot sauce to your sandwich.
5. Can I use a different sauce instead of mustard or horseradish?
Yes, you can use mayonnaise, barbecue sauce, or even a creamy aioli if you prefer a milder flavor.
6. Can I toast the bread for this sandwich?
Yes, toasting or grilling the bread adds an extra crunch and warmth to the sandwich. It’s especially good if you’re melting cheese.
7. How can I make this sandwich healthier?
To make it lighter, use whole grain bread, add more veggies like spinach or arugula, and choose lean roast beef. You can also skip the cheese if you prefer.
8. Can I freeze roast beef for later use?
Yes, you can freeze roast beef for up to 2-3 months. Just make sure to store it in an airtight container or freezer bag.
9. What other vegetables can I add to this sandwich?
You can add roasted peppers, pickled cucumbers, avocado, or arugula for extra flavor and crunch.
10. Can I make this sandwich ahead of time?
It’s best to assemble the sandwich just before eating to keep the bread from getting soggy. However, you can prepare the ingredients ahead of time and store them separately until ready to assemble.
Conclusion
A roast beef sandwich is a perfect blend of savory, hearty, and satisfying flavors. Whether you’re keeping it simple with just beef and mustard or loading it up with cheese and vegetables, this sandwich can easily be customized to suit your tastes. It’s a versatile meal that works for lunch, dinner, or even a quick snack. Easy to make and delicious every time, this roast beef sandwich is sure to become a staple in your recipe rotation.

Roast Beef Sandwich
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- Author: Ava
- Total Time: 10 minutes
- Yield: 1 sandwich
Description
A hearty and savory sandwich that combines tender roast beef, flavorful condiments, and optional cheese and veggies, all nestled between two slices of hearty bread. Perfect for lunch or dinner, this classic sandwich offers a satisfying blend of robust flavors.
Ingredients
- 2 slices of your favorite bread (sourdough, whole grain, rye, or a baguette)
4–6 slices of roast beef (deli-style)
1–2 slices of cheese (Swiss, cheddar, or provolone)
1 tablespoon Dijon mustard or horseradish sauce (optional)
1/4 red onion, thinly sliced (optional)
Lettuce or spinach leaves (optional)
1–2 tomato slices (optional)
Pickles (optional)
Salt and pepper to taste
Instructions
- Spread Dijon mustard or horseradish sauce (if using) on one or both slices of bread.
- Layer the roast beef on one slice of bread, arranging it evenly across the slice.
- Add your cheese slices on top of the beef.
- If you’re adding vegetables, layer the lettuce, tomato, red onion, and pickles on top of the beef and cheese.
- Season with a pinch of salt and pepper.
- Place the second slice of bread on top to complete the sandwich.
- Press down gently, slice the sandwich in half, and serve immediately.
Notes
- Grilled version: Toast the bread or grill the sandwich to melt the cheese and add extra crunch to the bread.
- Different spreads: Swap the Dijon mustard or horseradish sauce for barbecue sauce, mayonnaise, or even a pesto spread for a new twist.
- Add extras: For extra flavor, you can add roasted peppers, mushrooms, or a slice of bacon.
- Use a different cheese: Try blue cheese, gouda, or mozzarella for a different flavor profile.
- Prep Time: 10 minutes
- Cook Time: 0 minutes
- Category: Lunch
- Method: No cook
- Cuisine: American
Nutrition
- Serving Size: 1 sandwich
- Calories: 450
- Sugar: 4g
- Sodium: 1150mg
- Fat: 20g
- Saturated Fat: 8g
- Unsaturated Fat: 11g
- Trans Fat: 0g
- Carbohydrates: 35g
- Fiber: 3g
- Protein: 30g
- Cholesterol: 60mg