Put cauliflower, onion, potato, carrots, cashews, bone broth, and 1 tsp of salt in the Instant Pot. Cook on high manual pressure for 8 minutes, with the valve in the sealed position. Quick release when it's done.
While that's cooking, brown the ground beef and flavor with taco seasoning.
Blend everything from the IP in a blender until smooth.
Then add the nutritional yeast in the blender and blend until mixed in. If you're "queso" is too thick, you can thin it with more bone broth, adding a tablespoon or two at a time, until it's a good dipping consistency.
Taste, and add another 1/2 tsp salt, if needed.
Pour your sauce into a large bowl, and stir in the can of diced tomatoes & green chilies and ground beef.
Top with avocado and dip with your favorite chips!