I have made this so many times, and each time it seems I do something different. The one thing that is always a hit is adding sliced mushrooms. I have added a can of tomato sauce. I add the foil on top because by the time the dish is cooked, the bacon is usually overcooked. I have also seasoned the ground meat with an envelope of taco seasoning and added a can of beans such as kidney beans, black beans or pinto beans to replace the green beans.