Cook cauliflower rice in microwave according to package directions. Set aside.
In a food blender or processor, add all ingredients for smoky salsa sauce. Blend until smooth and well combined. Set aside.
In a large sauté pan, cook beef and mushrooms on medium high heat. Cook until beef is done.
Add smoky salsa sauce to the beef and simmer for a few minutes, until everything becomes thick and bubbly.
Make your guacamole by mashing avocados and adding in onion and juice of half of lime.
In a bowl, add cauliflower, plenty of salt and juice of other half of lime and mix together.
Make your smoky beef and guacamole bowls by spooning some cauliflower rice into personal serving size bowl, add some beef on top, along with some guacamole. Top with some more red onion if desired.
Enjoy!