Vegan friendly by omitting the cotija cheese.
The exact number of tacos you get will vary with how big your tortillas are and how much you fill them.
To make a spicier guacamole, leave the seeds and ribs in or increase the number of peppers you use. The heat of each pepper varies, so taste and adjust as needed to get the spice level you want.
You can find cotija cheese in the specialty cheese section or in the Latin/Hispanic refrigerated section of the grocery store. It is a white, crumbly cheese.