Cut the pita bread in half and get the fillings ready.
Slice the chicken breast into bite-sized pieces, add oil to a pan, cook the pieces, and let them cool.
Prepare the vegetables such as lettuce, tomato, and cucumber. Cut them into bite-sized pieces.
Stuff the cooked chicken breast, vegetables, and hummus inside the pita bread.
Add sauce, close the pita bread, and your sandwich is ready.