Yes, you can use aluminum foil facing as a serving dish for small appetizers or snacks. It is a convenient and disposable option, especially for outdoor events or casual gatherings. Ensure the foil is clean and food-safe, and handle it with clean hands or utensils to maintain hygiene. For best presentation, you might want to fold or shape the foil into a more appealing dish-like form. However, it's not recommended for high-temperature cooking or for use with acidic or highly oily foods, as these can cause the aluminum to break down or leach into the food.