Peel the russet potatoes with a vegetable peeler. Slice them into thin slices, no more than a 1/4 inch thick. Set them aside.
Use a large non-stick skillet with a lid, and heat over medium. Add the ground beef to the skillet and cook it until there is no longer any pink showing.
Drain the excess grease out of the skillet. Add the chopped onions into the skillet with the beef and sauté for about two minutes.
Next, add the Velveeta cheese into the skillet. Then pour in the milk. Mix this up until the cheese is melted. Add the water or chicken broth to help thin out the sauce mixture.
Stir in all of the seasonings until it is fully combined.
Now add the slices of potato directly into the sauce and gently stir until they are all covered.
Turn the heat down to medium-low, and place the lid on the skillet. Simmer for 10 minutes.
Uncover the skillet and gently lift up the potatoes (stir) to ensure they are not sticking to the bottom. If the sauce is too thick, or evaporated, add more chicken broth 1/2 cup at a time.
Place the lid back on the skillet and simmer another 10 minutes.
Open the lid and sprinkle the cheddar cheese and green onions over the top. Place the lid back on until the cheese melts.
Potatoes should be fork tender and ready to serve. Drizzle ranch dressing over individual portions for an added pop of flavor. Enjoy!