Prepare chicken breast or beef patty.
Slice iceberg lettuce, tomato, and onion.
Lightly toast the tortilla in a pan to warm it up.
Season the patty with salt and pepper and grill it in a pan.
Place lettuce, patty, tomato, onion, and cheese on the grilled tortilla in order.
Drizzle sauces such as mayonnaise and whole grain mustard on top.
Fold or roll the tortilla in half and serve.