From Reports | Approvals there are the following:
- CSR Workflow Approvals
- User Approval, you can run it for APPROVER_NAME to see all the approvals made by him.
- Migration Approvals by Env should work as soon you will have any Pending approval.
- Migration Approvals by Approval status also should work as soon you will have any Pending approval because it is the same of 'by Env' but ordered differently.
- Migration Hist with Approval History. It is reading historical issue for CSR.
For the this specific purpose the 'User Approval' report should be the right report to run.