sp_depends will fail to display correct information if there have been changes in views / tables /stored procs (dropping / recreating etc).
To actually parse through the definitions of stored procedures and find all that use certain table, function or other stored procedure, you can use the fragment above.
Replace the 'table_name_here' placehodler with the name of the object you want to search for.
I have seen cases where sp_depends returns 10-15 stored procedures while this query returns more than 30.