Omphalina s.l. is a reasonable suggestion but your photos allow us to go further. In Photo 2, in which you look straight down on these two mushrooms, you see a slight algal mat (albeit as a weak greenish wash, a little out of focus) on the soil. That's what you expect to see with Lichenomphalia chromacea. There are traces of that algal mat in the lower right corner of Photo 1, but the other photo shows it better.