I've smoked a lot of food. Chicken, different type of ribs, turkey, brisket, ham, pork butt/shoulder, rib eye steak & roast and cornish game hens. Grilled hamburgers and hot dogs. Bacon with brown sugar comes out delish.
Veggies come out great as well. Brussel Sprouts, potatoes, squash, zucchini, asparagus and corn on the cob.
You can pretty much smoke anything.