Very nice of you Sean.

Aliased the table variable, and referenced the values in the table variable with column name.

worked:

DECLARE @benches TABLE (Bench varchar(20));

INSERT @benches

values

('LabC1'),

('LabC2'),

('LabC3'),

('LabC4');

INSERT INTO RunsByBench

SELECT

Bench as BenchName,

COUNT(CreateDate) AS NumberOfRunsOnBench,

MAX(CreateDate) AS LastRun

FROM @benches b

OUTER APPLY dbo.GetBench(b.bench)

group by Bench;