this way...
declare @return1 int;
set @return1=0;
insert into table1(col1,col2) values('val1','val2');
select @return1=@@Identity;
insert into table1(col1,col2) values('val1','val2');
select @return1 as Insert1_PKey_Val, @@Identity as Insert2_PKey_Val;
it is store procedure then you can also use scope_identity function after insert statement
select Scope_Identity()
Happy Coding!
:)