This was quick to throw together. I used ground sirloin and didn't add the fried onions to the mixture, but served them on top of each individual serving after cooking. I didn't care for the cheese melted on top, and next time will just mix all the cheese together inside the casserole. I tried to fit this mixture into an 8x8 dish, but found it was overflowing. I'd suggest an 8x13 casserole dish. Next time I make this I'm adding additional mashed potatoes. This recipe was yummy!!