Step 1

Spray non-stick cooking spray in a medium-sized skillet. Over medium heat, cook deli roast beef until heated through.

Step 2

Spread Arby's sauce (see below) on the lower half of the bun and place roast beef on top of the saucy bun.

Step 3

Spoon cheddar cheese sauce on top of the roast beef (see below). Place the other half of the bun on the top and serve.

Step 4

Melt better in a small saucepan over medium heat and sprinkle with flour.

Step 5

Whisk in the flour (whisking constantly) and cook for about 1 minute forming a roux.

Step 6

Whisk in the milk and continue whisking over medium heat until it reaches the desired thickened consistency. About 1-2 minutes.

Step 7

Remove from the heat and stir in shredded cheese. Add salt and pepper, to taste.

Step 8

In a small saucepan combine all the Arby's sauce ingredients.

Step 9

Simmer over medium heat for a couple of minutes.