That is
black pudding. (Made with pig blood.) The rest of the items going clockwise are fried mushrooms, baked beans (usually in a tomato-based sauce), fried tomato, Irish breakfast sausage, Irish back bacon, white pudding (same as black pudding but with no blood), and fried egg in the center.
Thank you. I like to try new foods, but that one, I’m not so sure about.
Blood anything just doesn’t appeal to me.