Get a collection of ec2 instance names (from tag) with associated security groups

Get-InstanceSecurityGroups

Get-EC2Instance | 
    Select -ExpandProperty Instances | 
        Select -Property @{
                            Name='InstanceId'
                            Expression={$_.InstanceId}
                          },
                         @{
                            Name='SecurityGroups'
                            Expression = {$_.SecurityGroups | Select -ExpandProperty GroupId}
                          },
                            
                         @{
                            Name='TagName'
                            Expression={$_.Tags | ? {$_.Key -eq 'Name'} | Select -ExpandProperty Value }
                          }