Preheat a large skillet over medium heat.
Add the eggs to a bowl and whisk together. In a separate bowl add the flour, garlic powder, onion powder, salt and pepper. Whisk together.
Dredge one cube steak in the flour, then the eggs, then back in the flour. Repeat with remaining cube steaks.
Add the olive oil to the skillet. Once it's hot add the cube steaks. Cook 3-4 minutes on each side. Remove cube steaks from the pan.
Remove most of the grease from the skillet. Add the skim milk.
In a small bowl add the cornstarch with a couple tablespoons of water and mix together. Slowly pour the cornstarch into the milk while whisking. Add a pinch of salt and pepper.
Let the gravy simmer for 2 minutes or until it's thickened.