This barbecued roast beef on a bun recipe is perfect for a quick and satisfying meal. The combination of tender roast beef and tangy barbecue sauce creates a deliciously savory experience. Toasted buns add a delightful crunch, making this dish a favorite for casual gatherings or a simple weeknight dinner.
The ingredients for this recipe are quite straightforward. You will need thinly sliced roast beef, which can be found in the deli section of most supermarkets. Barbecue sauce is a pantry staple for many, but if you don't have it on hand, you can easily find it in the condiment aisle. Split buns are typically available in the bakery section or bread aisle.

Ingredients For Barbecued Roast Beef On A Bun
Roast beef: Thinly sliced and ideally from the deli section, this is the star of the dish, providing a rich and savory flavor.
Buns: Split buns are perfect for holding the roast beef and sauce, offering a soft yet sturdy base.
Barbecue sauce: This adds a tangy and slightly sweet flavor to the roast beef, enhancing the overall taste of the dish.
Technique Tip for This Recipe
When heating the roast beef in the pan with the barbecue sauce, make sure to use a low to medium heat to prevent the meat from drying out. Stir occasionally to ensure the sauce evenly coats the beef. This will help maintain the juiciness and enhance the flavor of the sandwich.
Suggested Side Dishes
Alternative Ingredients
thinly sliced roast beef - Substitute with thinly sliced turkey: Turkey provides a similar texture and can absorb the barbecue sauce well, making it a good alternative for those who prefer poultry.
thinly sliced roast beef - Substitute with thinly sliced pork: Pork offers a slightly different flavor but still pairs well with barbecue sauce and can be easily sliced thin for sandwiches.
split buns - Substitute with whole wheat buns: Whole wheat buns offer a healthier option with more fiber and nutrients while maintaining the structure needed for the sandwich.
split buns - Substitute with ciabatta rolls: Ciabatta rolls provide a slightly different texture and flavor but are sturdy enough to hold the ingredients without falling apart.
barbecue sauce - Substitute with teriyaki sauce: Teriyaki sauce offers a sweet and savory alternative that can complement the meat similarly to barbecue sauce.
barbecue sauce - Substitute with honey mustard sauce: Honey mustard sauce provides a tangy and sweet flavor profile that pairs well with both beef and poultry.
Alternative Recipes Similar to This Dish
How to Store or Freeze This Dish
- Allow the roast beef to cool completely before storing. This prevents condensation, which can make the meat soggy.
- Use airtight containers or heavy-duty freezer bags to store the roast beef and barbecue sauce mixture separately from the buns. This ensures the buns don't become soggy.
- Label the containers with the date to keep track of freshness.
- Store the roast beef and barbecue sauce mixture in the refrigerator for up to 3 days. For longer storage, place them in the freezer for up to 2 months.
- To reheat, thaw the roast beef and barbecue sauce mixture in the refrigerator overnight if frozen.
- Warm the roast beef and barbecue sauce mixture in a pan over medium heat until heated through, about 5 minutes.
- Toast the buns on the grill or in a toaster oven until lightly crispy, about 2 minutes.
- Assemble the barbecued roast beef on the toasted buns and serve immediately for the best texture and flavor.
How to Reheat Leftovers
Oven Method:
- Preheat your oven to 350°F (175°C).
- Wrap each bun with roast beef in aluminum foil to keep it moist.
- Place the wrapped sandwiches on a baking sheet and heat for about 10-15 minutes, or until warmed through.
- Unwrap and enjoy your reheated barbecued roast beef on a bun.
Stovetop Method:
- Heat a non-stick skillet over medium heat.
- Add a small amount of butter or olive oil to the skillet.
- Place the roast beef in the skillet and cover with a lid to retain moisture.
- Heat for about 5-7 minutes, flipping halfway through, until the roast beef is warmed through.
- Toast the buns separately in the skillet for about 1-2 minutes if desired.
Microwave Method:
- Place the roast beef on a microwave-safe plate.
- Cover with a microwave-safe lid or a damp paper towel to prevent drying out.
- Microwave on medium power for 1-2 minutes, checking and stirring halfway through.
- Toast the buns separately in a toaster or microwave for about 20-30 seconds.
Air Fryer Method:
- Preheat your air fryer to 320°F (160°C).
- Wrap the roast beef and buns in aluminum foil.
- Place the wrapped sandwiches in the air fryer basket.
- Heat for about 5-7 minutes, or until the roast beef is warmed through and the buns are toasty.
Sous Vide Method:
- Preheat your sous vide water bath to 140°F (60°C).
- Place the roast beef in a vacuum-sealed bag or a resealable plastic bag using the water displacement method.
- Submerge the bag in the water bath and heat for about 30 minutes.
- Toast the buns separately in a toaster or on a skillet.
- Assemble the barbecued roast beef on a bun and enjoy.
Essential Tools for This Recipe
Grill: Used to toast the buns to a light crisp, adding a smoky flavor.
Pan: Utilized to heat the roast beef with the barbecue sauce, ensuring even warming.
Spatula: Helps in flipping the buns on the grill and stirring the roast beef in the pan.
Tongs: Handy for placing the roast beef onto the buns without making a mess.
Basting brush: Can be used to apply additional barbecue sauce onto the roast beef if desired.
Cutting board: Provides a clean surface to rest the buns and roast beef before assembly.
Knife: Useful for splitting the buns if they are not pre-split.
Serving plate: To arrange the assembled barbecued roast beef buns for serving.
How to Save Time on Making This Recipe
Pre-slice the roast beef: Purchase thinly sliced roast beef from the deli to save time on preparation.
Use pre-made barbecue sauce: Opt for a high-quality barbecue sauce to avoid making it from scratch.
Toast buns in advance: Toast the split buns ahead of time and keep them warm in the oven.
One-pan heating: Heat the roast beef and barbecue sauce together in one pan to minimize cleanup.
Assemble quickly: Have all ingredients ready and assemble the barbecued roast beef on a bun immediately before serving.

Barbecued Roast Beef on a Bun
Ingredients
Main Ingredients
- 1 lb Roast beef thinly sliced
- 4 Buns split
- 1 cup Barbecue sauce
Instructions
- Preheat the grill to medium-high heat.
- Grill the buns until lightly toasted, about 2 minutes.
- Heat the roast beef in a pan with the barbecue sauce until warmed through, about 5 minutes.
- Place the warmed roast beef on the toasted buns and serve immediately.
Nutritional Value
Keywords
Suggested Appetizers and Desserts for This Recipe
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