Step 6:

Warm a tortilla in the microwave for about 10-15 seconds, and place it onto a clean worksurface.

Build your burrito by piling up some lettuce, cheese, meat/bean mix, tomatoes and finally chives, like so:

Note: You'll need to experiment to find the right quantities of each to put on - too much and your buritto will burst!
 

 Step 7:

Next, fold the burrito into a little parcel, below is my technique for this at the half-way stage.