Do you know other ways to prepare kangkong aside from adobo or steaming it?

How about stir frying it with some garlic? It has very little ingredients and really simple to prepare. Here's a recipe you can try: https://www.maggi.ph/recipes/view/128/stir-fried-kangkong-with-garlic

Crispy kangkong: dip each leaf in beaten egg then put some crispy fry powder... And they're ready to fry.