Sound design?

Yup, love that too. It's everywhere — computers, cars, and even food.

Detail about fajitas is here:

Chili’s kept the recipe simple and relied primarily on the sizzle to not only turn heads but also trigger a barrage of senses: you hear them, then you notice the smoke and smell the aroma. Add up all of that, and you don’t just taste or see a neat-looking dish with Chili’s sizzling fajitas. You experience it.