- Heat a griddle, iron skillet, or non-stick pan over medium heat. 
- Add 3 tablespoons of oil to the pan and sauté the diced onions to desired doneness. Remove and set aside. 
- Add remaining 3 tablespoons of oil to the pan and quickly sauté the thin meat slices on both sides. 
- As slices brown quickly, scramble them into smaller pieces using a flat spatula. 
- Meanwhile, melt the Cheez Whiz in a pot or microwave until smooth. 
- Place 6 ounces of cooked meat into each roll, pushing meat to one side. 
- Add sautéed onions and any other desired toppings next to the meat (not on top). 
- Use a butter knife or chopstick to smear melted Cheez Whiz next to the meat and toppings. 
- Serve immediately while hot.