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–+ servings
Roast Beef Sandwich with cheddar sauce on a white plate
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4.50 from 6 votes

Roast Beef and Cheddar Sandwich

A Roast Beef and Cheddar Sandwich is a take out favorite and so simple to make at home. Smoked roast beef is thinly sliced and piled high on a buttery bun with homemade cheddar sauce and barbecue sauce. A delicious flavor combination for lunch or dinner.
Prep Time10 minutes
Cook Time1 hour
Total Time1 hour 10 minutes
Course: Sandwiches
Cuisine: American
Keyword: arby's copycat, beef n cheddar, roast beef sandwich
Servings: 8 servings
Calories: 970kcal
Author: Milisa

Ingredients

  • For the Roast Beef:
  • 4 pound beef chuck roast
  • 1/4 cup brown sugar
  • 1 teaspoon kosher salt
  • 1 teaspoon black pepper
  • 1 teaspoon granulated garlic
  • 1 teaspoon smoked paprika
  • 1 teaspoon dry mustard
  • For the Cheese Sauce:
  • 2 tablespoons butter
  • 2 tablespoons all purpose flour
  • 1/4 teaspoon kosher salt
  • 1/4 teaspoon dry mustard
  • 1/4 teaspoon black pepper
  • 1 cup milk
  • 2 cups shredded cheddar cheese
  • For the Sandwiches:
  • 1/2 cup barbecue sauce
  • 8 sandwich buns
  • 2 tablespoons of melted butter
  • 1/2 teaspoon onion flakes
  • 1/4 teaspoon granulated garlic

Instructions

For the Roast Beef:

  • Pat roast with paper towels and place on a baking sheet. 
  • Mix dry rub in a small bowl: brown sugar, kosher salt, garlic, pepper, smoked paprika and dry mustard. 
  • Rub over all sides of roast. 
  • Heat grill to about 300- 350°.
  • Place Roast on grill and close the grill.
  • Cook roast for about 15 minutes per pound until 128-135° internal temperature for rare, 145° for medium.
  • Remove from grill and cover with foil. Allow to rest 15 minutes before slicing thin. You may also wrap the roast in plastic wrap and refrigerate until completely chilled to slice.

For the Cheddar Sauce:

  • Melt butter in a saucepan and whisk in flour, dry mustard, salt and pepper.
  • Cook for 3 minutes, whisking continually. Add milk and continue cooking about 5 minutes over medium heat until thickened. 
  • Remove from heat and stir in cheese until completely melted. 

Assemble the Roast Beef and Cheddar Sandwiches:

  • Lightly toast buns
  • Mix melted butter with onion flakes and garlic, brush tops with butter while warm.
  • Top buns with barbecue sauce, thinly sliced roast beef, cheddar sauce and top bun.

Nutrition

Serving: 1g | Calories: 970kcal | Carbohydrates: 44g | Protein: 73g | Fat: 56g | Saturated Fat: 26g | Polyunsaturated Fat: 26g | Trans Fat: 3g | Cholesterol: 250mg | Sodium: 1259mg | Fiber: 2g | Sugar: 12g