When you create a stored procedure like:

if exists (select 1 from sysobjects where name = 'GetDataFromTempTable' and xtype = 'p')
    drop procedure [dbo].[GetDataFromTempTable]
go

create procedure [dbo].[GetDataFromTempTable]
as
begin

-- Create temp table
create table #MyTempTable
(
    [Id] int not null primary key,
    [Nummer] varchar(10) not null
)

insert #MyTempTable ([Id], [Nummer]) values (1, 'Test1')

-- Return all rows from the temp table
select
    *
from
    #MyTempTable

end
go

and generate code with LLBLGen Pro to call this stored procedure,
it will generate an Action Stored Procedure Call instead off a Retrieval Stored Procedure Call.
This is, because LLBLGen Pro by default automatically generates the return type. see
http://www.llblgen.com/documentation/2.6/using%20the%20designer/designer_creatingproject.htm

By changing the user preference AutoDetermineSProcType to false, you can manually change the amount of result sets during the catalog refresh.

Change AutoDetermineSProcType
LLBLGen Pro > File > Preferences… > AutoDetermineSProcType > set to false

Refresh catalog
LLBLGen Pro > Project > Refresh All Catalogs… > Manually select the stored procedures to retrieve
> New number of Resultsets for selected procedures > set to 1

The stored procedure can now be added to Retrieval Stored Procedure Calls instead of Action Stored Procedure Calls.