in-line table-valued functions don't have their own execution plan. They're in-lined into the queries that call them, the combined query has an execution plan which is cached normally. You may see index seeks, that doesn't mean that you don't have the problem, you'll likely have to put the recompile hint on the outer query though.
Gail Shaw
Microsoft Certified Master: SQL Server, MVP, M.Sc (Comp Sci)
SQL In The Wild: Discussions on DB performance with occasional diversions into recoverability