Beginner needing some help to identify this please.

Beginner needing some help to identify this please.

Observation - Beginner needing some help to identify this please.. Description: Dozens of these quite large fungi in a grassy waste area. About 5-8cm in diameter. Hope someone can help. Thanks.

Dozens of these quite large fungi in a grassy waste area. About 5-8cm in diameter. Hope someone can help. Thanks.