Fattie would be a great idea, they normally won't run over 3 hours.
Some other short smokes are
ABTs, moink balls, pepper shooters wrapped in sausage (a personal favorite), meatloaf you already mentioned, spinach dip.
Does she enjoy anything you smoke? If so then it should be a little easier to maybe work her into trying new smoked things.
Maybe do some chicken and make a soup out of it even using the bones to make a stock, a spaghetti sauce using smoked tomatoes and onions in it, anoter favorite of mine is smoked Italian beef. Maybe adding little bits of smoke into dishes she will begin loving it?