Brown ground beef in a skillet. Add the taco seasoning packet and cook according to the directions.
In a small bowl, combine the salsa and the sour cream and spread over the pizza crusts. Top pizza crusts with the cooked meat, green onions, tomato, olives and shredded cheese. Bake according to directions on the pizza packaging.
Remove pizza from oven and drizzle with nacho cheese sauce. Return to the oven and bake for 5 minutes. Remove from the oven, top with jalapeños, slice and serve.