My mother-in-law and uncle told me that modern gifilte fish, like loaves or jarred balls, is nothing like the real thing. The word gefilte means filled. What they used to do, according to my MIL and uncle, was clean the fish, take out the meat, mix the meat with stuff, put the mixture back into the fish skin, and cook it. It was served looking whole. One picked up the skin to get what was inside.
Pizza is one way of having warm bread after Shabbat. Pat Chamah b’motsai Shabbat melugma (Shabbat 119b).