Leftover Roast Beef Bar-B-Que Sandwich Filling

The aroma of a Sunday roast simmering in the oven is pure nostalgia for me. My grandmother, a true Southern matriarch, always made a gargantuan roast beef that fed us for days. But even with a family of hungry teenagers, there were always leftovers. Instead of letting it go to waste, she’d transform it into the most incredible BBQ sandwiches, a smoky, tangy symphony that made Monday nights feel like a second Sunday. This recipe is my ode to her ingenuity and a delicious way to breathe new life into leftover roast beef.

Recipe Overview

• Prep Time: 10 minutes
• Cook Time: 15 minutes
• Total Time: 25 minutes
• Servings: 4-6
• Yield: Varies based on roast beef amount
• Dietary Type: Varies based on ingredients, generally not gluten-free or dairy-free

Ingredients

• 2-3 lbs roast beef, cooked
• 12 ounces Sweet Baby Ray’s barbecue sauce (any flavor)
• 1 medium onion, sliced thin
• 2 pickles, sliced
• 4-6 buns or 8-12 slices bread

Equipment Needed

• Large bowl with lid
• Microwave-safe container

Instructions

1. Begin by preparing the roast beef. Shred the cooked roast beef into bite-sized pieces or cut it into thin slices, depending on your preference. I find shredding it allows for better sauce absorption and a more tender final product.

2. In a large bowl, combine the shredded or sliced roast beef with enough barbecue sauce to thoroughly coat the meat and create a moist consistency. Don’t be shy with the sauce; it’s the key to that signature BBQ flavor!

3. Transfer the sauced roast beef into a bowl with a lid. This is crucial for allowing the flavors to meld and prevents the roast beef from drying out during storage.

4. Refrigerate the mixture overnight or freeze for longer storage. Refrigerating overnight allows the flavors to deeply penetrate the meat, resulting in a more flavorful sandwich.

5. When you’re ready to enjoy your BBQ sandwiches, thaw the roast beef mixture completely if it was frozen.

6. Microwave the thawed roast beef mixture in a microwave-safe container until it’s heated through. I recommend microwaving in 2-minute intervals, stirring in between, to ensure even heating and prevent scorching. Usually, this takes about 2 minutes at a time until hot.

7. Finally, assemble your sandwiches! Spoon the heated roast beef mixture onto your favorite buns or slices of bread. Top with sliced onion and pickles for a classic BBQ sandwich experience.

Expert Tips & Tricks

• For a richer flavor, try adding a tablespoon of apple cider vinegar or Worcestershire sauce to the barbecue sauce mixture.
• If you’re short on time, you can skip the overnight refrigeration, but the flavor will be more developed if you allow the roast beef to marinate in the sauce.
• To prevent the buns from becoming soggy, lightly toast them before adding the filling.
• If you want a little kick, add a pinch of red pepper flakes to the barbecue sauce.
• Don’t overcrowd the microwave. Heating the roast beef in smaller batches ensures it heats evenly and doesn’t dry out.
• If the roast beef seems dry after microwaving, stir in a little extra barbecue sauce.

Serving & Storage Suggestions

Serve the Leftover Roast Beef Bar-B-Que Sandwich Filling immediately on toasted buns or your favorite bread. I like to serve mine with a side of coleslaw or potato salad for a complete meal.

Leftovers can be stored in an airtight container in the refrigerator for up to 3-4 days. Reheat gently in the microwave or on the stovetop. Freezing is also an option; store in an airtight container for up to 2-3 months. When reheating from frozen, thaw overnight in the refrigerator before microwaving or heating on the stovetop.

Do not leave the cooked roast beef at room temperature for more than 2 hours.

Nutritional Information

Nutrient	Amount per Serving (Estimate)	% Daily Value (Estimate)
Calories	600 kcal	30%
Total Fat	30g	46%
Saturated Fat	10g	50%
Cholesterol	150mg	50%
Sodium	1200mg	50%
Total Carbohydrate	60g	20%
Dietary Fiber	3g	12%
Sugars	30g	N/A
Protein	50g	100%

Disclaimer: This nutritional information is an estimate and may vary based on specific ingredients and portion sizes.

Variations & Substitutions

• Spicy Kick: Add a dash of hot sauce or cayenne pepper to the barbecue sauce for a spicier sandwich.
• Sweet and Tangy: Use a barbecue sauce with a honey or molasses base for a sweeter flavor. Add a splash of apple cider vinegar for tang.
• Slaw Topping: Top the sandwich with a scoop of coleslaw for added crunch and flavor.
• Cheese Please: Add a slice of cheddar, provolone, or pepper jack cheese to the sandwich while it’s still hot for a melty, cheesy delight.
• Bun Alternatives: Use kaiser rolls, ciabatta rolls, or even Texas toast instead of traditional buns.
• Low-Carb Option: Serve the roast beef mixture over a bed of lettuce or with cauliflower rice for a low-carb alternative.
• Regional Twist: Experiment with different regional barbecue sauces, such as Kansas City-style (sweet and smoky) or Carolina-style (vinegar-based).

FAQs (Frequently Asked Questions)

Q: Can I use a different type of barbecue sauce?
A: Absolutely! Feel free to experiment with your favorite barbecue sauce flavors, from sweet and smoky to tangy and spicy.

Q: How long can I store the leftover roast beef filling in the freezer?
A: The filling can be stored in the freezer for up to 2-3 months without significant loss of quality. Make sure to use an airtight container to prevent freezer burn.

Q: Can I make this recipe with other types of leftover meat?
A: Yes, this recipe works well with leftover pulled pork, brisket, or even chicken. Adjust the cooking time accordingly.

Q: Do I have to refrigerate the roast beef mixture overnight?
A: While not essential, refrigerating the mixture overnight allows the flavors to meld together, resulting in a more flavorful final product.

Q: Can I reheat the roast beef filling in the oven instead of the microwave?
A: Yes, you can reheat the filling in a preheated oven at 350°F (175°C) for about 15-20 minutes, or until heated through. Be sure to cover the dish with foil to prevent the meat from drying out.

Final Thoughts

I hope this recipe inspires you to transform your leftover roast beef into something truly special. This BBQ sandwich filling is a testament to the idea that leftovers can be just as delicious, if not more so, than the original meal. Don’t be afraid to experiment with different barbecue sauces, toppings, and variations to create your own signature sandwich. So, fire up the microwave (or oven), gather your ingredients, and get ready to enjoy a mouthwatering meal that’s both comforting and incredibly flavorful. I’d love to hear about your creations and any tweaks you make to the recipe! Enjoy!