01 -
Melt butter in a large skillet over medium heat. Add ground beef and cook until browned, then drain excess fat.
02 -
Add onion powder, garlic powder, salt, and pepper to the browned beef. Stir to combine.
03 -
In a mixing bowl, combine the cooked beef, cooked white rice, condensed French onion soup, and sour cream until evenly mixed.
04 -
Preheat oven to 350°F. Grease a 9 by 13 inch baking dish to prevent sticking.
05 -
Transfer the mixture into the prepared baking dish. Top with shredded mozzarella cheese. Bake for 30 to 45 minutes until bubbly and golden on top.