Yes, absolutely! You can toss in sliced black olives, chopped bell peppers, onion, sausage, bacon, diced ham, jalapenos, and just about any kind of pizza topping you like the most. If you plan on doing sausage pizza bites, pre-cook the sausage in a skillet before tossing with the other ingredients - likewise with the bacon, bell peppers, and onions (at least cook until they are partially softened). That way, everything is nicely cooked through and nothing is raw.