Step 2: Cook the Savory Beef Filling - While the potatoes bake, heat olive oil in a
skillet and add the ground beef. Let it brown for a few minutes before stirring in the diced onion, salt, garlic powder, paprika, black pepper, and tomato sauce. Cook until the onions soften and the beef is fully cooked. You want the mixture juicy but not watery. The tomato sauce helps coat everything and gives the filling that little extra richness.