Cut the chuck roast into small, bite-sized pieces. Dry the pieces of meat well with a paper towel and set them to the side. Dice the white onion into small pieces and reserve for later. Put the ...

Top with half of the meat and tomato mixture. Repeat layers and top with remaining meat and tomato mixture. Cover and bake at 375 degrees for 45 minutes. Uncover and sprinkle with cheese.