Hello Milky, I think it may be a Collared earthstar which is just the fruiting body (mushroom) of a particular fungus. The fungus is decomposing something organic in the soil, probably a dead tree root. Unless you can remove the food source, the fungus will keep doing its work and occasionally”blooming” into an earthstar. Eventually, as the root decays, the fungus will go away.

I would worry more about that giant foot!!

wow they are stunning and are certainly one of the earth stars, I'd also go for the collared earth star.
its not poisonous but taste is unpleasant according to the woodland trust.