Heat a large deep skillet over medium-high heat. Add the oil to the pan.
Now add the ground beef, onion and garlic and cook until the meat is browned.
Add the cream cheese and stir until it’s melted and well blended. Pour in the soup, stock, thyme (if using) and the egg noodles; stir well. Bring to a boil, reduce heat to medium-low and gently boil until the noodles are cooked and liquid is reduced by 50%.
Stir in the sour cream and top with the French fried onions.