Place 6 tortillas on a clean surface. Make a straight edge on each tortilla by trimming about 7.5-cm (3-inch) off 1 side. Brush the tortillas with mayonnaise. Divide the lettuce, tomatoes, bacon and half the chicken among the tortillas, arranging the ingredients along the straight side. Season with salt and pepper. Roll each tortilla tightly and wrap it with parchment paper. Tie each roll with 3 small ribbons, 1 in the middle and the others about 5-cm (2-inch) from the ends. Trim the ends and cut each roll between the ribbons into 3 equal pieces.
Chicken and Mango version
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