How to turn related records into hierarchical recordset

Hello,

I have two tables of data and the data is related. I however need it to be heirarchical for binding to a tree control and in this data set it is probable that child records will have more than one parent. So I was unsure how to write such a query so I posted this question: http://social.msdn.microsoft.com/Forums/en-US/transactsql/thread/2e3987a3-093e-412e-a771-e4b1395d8814.  Based upon this understanding I now have three tables:

DECLARE @Foods TABLE(FoodNameID INT,FoodName VARCHAR(50)) 
INSERT INTO @Foods VALUES(56743, 'Omlette')
INSERT INTO @Foods VALUES(56756, 'Yogurt')
INSERT INTO @Foods VALUES(56735, 'Filet Mignon')

DECLARE @FoodGroups TABLE(FoodGroupID INT,FoodGroupName VARCHAR(50))
INSERT INTO @FoodGroups VALUES(1001, 'Breakfast')
INSERT INTO @FoodGroups VALUES(1007, 'High Protein')
INSERT INTO @FoodGroups VALUES(1009, 'Fresh')
INSERT INTO @FoodGroups VALUES(1002, 'Red Meat')

DECLARE @Foods_FoodGroups TABLE(FoodListID INT, FoodParentID INT, FoodNameID INT, FoodGroupID INT)

INSERT INTO @Foods_FoodGroups VALUES(1, null, null, 1001)
INSERT INTO @Foods_FoodGroups VALUES(2, 1, 56743, 1001)
INSERT INTO @Foods_FoodGroups VALUES(3, null, null, 1007)
INSERT INTO @Foods_FoodGroups VALUES(4, 3, 56743, 1007)
INSERT INTO @Foods_FoodGroups VALUES(5, null, null, 1009)
INSERT INTO @Foods_FoodGroups VALUES(6, 5, 56743, 1009)
INSERT INTO @Foods_FoodGroups VALUES(7, 1, 56756, 1001)
INSERT INTO @Foods_FoodGroups VALUES(8, 3, 56756, 1007)
INSERT INTO @Foods_FoodGroups VALUES(9, null, null, 1002)
INSERT INTO @Foods_FoodGroups VALUES(10, 9, 56735, 1002);

One thing that jumps out at me right away is that I have to enter "dummy records" for the category groups like the first record 1, null, null, 1001. This just seems wrong so I am highly suspicious of the monster I am creating.

I can write a cte such as this but it is not exactly ideal because it has to deal with the questionable "join / hierarchy table above.

WITH FoodList AS
 (
	SELECT
		ParentFFG.FoodListID,
		ParentFFG.FoodNameID,
		ParentFFG.FoodGroupID,
		ParentFFG.FoodParentID
	FROM 
		@Foods_FoodGroups ParentFFG
	WHERE 
		ParentFFG.FoodParentID IS NULL
	UNION ALL
	SELECT 
		FFG.FoodListID,
		FFG.FoodNameID,
		FFG.FoodGroupID,
		FFG.FoodParentID
	FROM 
		@Foods_FoodGroups FFG
	INNER JOIN FoodList AS FL ON
	FFG.FoodParentID = FL.FoodListID
	WHERE FFG.FoodParentID IS NOT NULL
 )
SELECT 
	Flst.*,
	Fgp.FoodGroupName,
	Fds.FoodName
FROM 
	FoodList Flst
INNER JOIN @FoodGroups Fgp ON
Flst.FoodGroupID = Fgp.FoodGroupID

LEFT JOIN @Foods Fds ON
Fds.FoodNameID = Flst.FoodNameID

So I need some direction on how to properly structure my tables and or queries as this related hierarchy scenario will happen multiple times.

Thank You

JB