The big mac in a bowl (the way I make it at least) is a bowl of shredded lettuce with lean ground beef (or turkey, but beef obviously tastes more like a big mac), some onions diced real fine (uncooked), some Walden Farms thousand island dressing, and a few slices of dill pickles. Pretty much just the ingredients of a big mac transformed into salad form. I love it.
I don't think I am missing anything there... but you could add other stuff if you wanted.
Have you looked through the "recipe' sticky threads at the top of the page? They are great. There is also a thread somewhere around here called "fun with ideal protein packets". It has some great ideas. I will find it and bump it for you.
Oh, and look for a thread on pudding cakes as well, those are great to mix things up. I just bumped that one a day or two ago, so it should be in the first few pages.