In a frying pan, brown the ground beef until its almost fully cooked. Add the taco seasoning and continue to brown until done. Turn off the flame and let cool for 10-15 minutes.
Meanwhile, prep a large baking dish with a layer of sour cream at the base of the dish.
Use the back of a spoon or an offset spatula to smooth the sour cream around to form an even layer.
To the sour cream, pour the salsa on top and jiggle the baking dish to spread around evenly.
Pour the ground beef on top of the salsa, then add a generous layer of cheese.