I've tried some new things with this great recipe. I've been adding whatever turkey or chicken sausage, keilbasa, or even hot dog that I have on hand as well as any kind of cheese. This is really good with shredded mozzarella or even American cheese. To balance the sodium of the meat and cheese substitutions I use Trader Joe's No Sodium Wheat Bread. Also, if I make a half recipe in an 8x8 dish I only need 4 slices of bread, not 5. This has become my family's go-to breakfast dish when we get together for holidays and birthdays!