Outer apply with INSERT statement - sql

Question

I want to do something like this
CREATE TABLE #tempFacilitiesAssociated
(
FacilityID BIGINT,
FacilityName VARCHAR(MAX),
IsPrimary BIT
)
-- Insert statements for procedure here
;WITH CTE_RESULT AS
(
SELECT
usr_id, t.name AS Title,
usr_fname, usr_lname, primaryAddress.add_suburb,
CASE
WHEN primaryAddress.add_suburb = #suburb THEN 1
WHEN t.name = #Title THEN 2
ELSE 3
END AS MatchOrder
FROM
core_users u
LEFT JOIN
RIDE_ct_title t ON t.title_id = u.usr_title
OUTER APPLY
(INSERT INTO #tempFacilitiesAssociated
EXEC dbo.[sp_Common_Get_AllFacilitiesForSupervisor] usr_id, 5
SELECT TOP 1 fa.*
FROM CORE_Facilities f
LEFT JOIN CORE_FacilityAddresses fa ON fac_id = fa.add_owner
WHERE fac_id = (SELECT TOP 1 FacilityID
FROM #tempFacilitiesAssociated
WHERE IsPrimary = 1)) primaryAddress
WHERE
u.usr_fname = #FirstName AND usr_lname = #LastName
)
So, first I want to get all facilities of that user through a stored procedure, and then use it to outer apply and select its suburb
UPDATE
I tried using function instead
CREATE FUNCTION fn_GetAddressForUserFacility
(#UserID BIGINT)
RETURNS #Address TABLE (FacilityID BIGINT,
add_address NVARCHAR(MAX),
add_addressline2 NVARCHAR(MAX),
add_suburb NVARCHAR(MAX)
)
AS
BEGIN
DECLARE #FacilitiesAssociated TABLE
(FacilityID BIGINT,
FacilityName NVARCHAR(MAX),
IsPrimary BIT)
INSERT INTO #FacilitiesAssociated
EXEC dbo.[sp_Common_Get_AllFacilitiesForSupervisor] #UserID, 5
INSERT INTO #Address
SELECT TOP 1
fa.add_owner, fa.add_address, fa.add_addressline2, fa.add_suburb
FROM
CORE_Facilities f
LEFT JOIN
CORE_FacilityAddresses fa ON f.fac_id = fa.add_owner AND add_type = 5
WHERE
fac_id = (SELECT TOP 1 FacilityID
FROM #FacilitiesAssociated
WHERE IsPrimary = 1)
RETURN
END
But now its returning
Invalid use of a side-effecting operator 'INSERT EXEC' within a function.