I’d be careful with the salt, since the hot dogs are already somewhat salty. Otherwise, go nuts! I find the hot dog flavor to be pretty strong, so I tend to add in strong flavors (e.g. Sichuan peppercorn, kimchi) that can stand up to it. I like to cook the hot dogs in the oil first to draw out the fat and flavors of the hot dogs so that in turn can coat the rice and other ingredients.