Start making the thyme ground beef and gravy 25 minutes before the potatoes are done baking.
Heat a large skillet on medium heat and add ground beef, onion powder, pepper, granulated garlic, and salt. Stir the spices in with the ground beef.
With a spatula, break up the ground beef so that the pieces are all about the same size. Continue to stir as the ground beef cooks.
For the Fresh Thyme - Remove the leaves from the sprigs of thyme. If the leaves are small, no need to chop them. But if the leaves are on the larger side, then chop the thyme leave.
To the skillet, add the thyme and 2 cups of beef broth, and stir.