Step 1

In a small bowl, mix together cream cheese, sour cream, green onion, horseradish, mustard and cheese.

Step 2

Spread 1/3 of cream cheese mixture on one tortilla.

Step 3

Place 1/3 of roast beef on top of cream cheese layer.

Step 4

Roll tortilla very tight into a log and then wrap in cling wrap.

Step 5

Repeat process with other two tortillas.

Step 6

Chill in refrigerator for at least one hour before slicing.

Step 7

Slice into 1 inch pieces with serrated knife.