The finely minced garlic gives an intense and characteristic aroma and flavour. The fresh tomato can be used to give a sweet and sour base to the sauce. The parsley adds an intense and fresh aroma. The chilli pepper gives a touch of heat and spiciness. Button mushrooms can be used to add an intense, savory flavor. Carrots give a note of sweetness and crunchiness. Finally, the fresh basil adds an intense and fresh flavour.