Preheat the oven to 200°C (392°F).
Place the tortilla on a baking tray.
Spread tomato sauce evenly over the tortilla.
Slice chicken breast, pineapple, onion, and bell pepper thinly.
Top the tortilla with the sliced ingredients and low-fat cheese.
Season with pepper and basil or other herbs.
Bake in the oven for 10 to 12 minutes.
Cut into bite-sized pieces and serve on a plate.