Load the package afterpage
\usepackage{afterpage}
and add these two lines after your \tableofcontents
\addtocontents{toc}{\protect\afterpage{\hspace*{-1.5em}\bfseries\Large \contentsname}}
\addtocontents{toc}{\protect\afterpage{\vspace*{10pt}}}
MWE:
\documentclass{article}
\usepackage{afterpage}
\usepackage{lipsum} % only for the example
\begin{document}
\tableofcontents
\addtocontents{toc}{\protect\afterpage{\hspace*{-1.5em}\bfseries\Large \contentsname}}
\addtocontents{toc}{\protect\afterpage{\vspace*{10pt}}}
\newpage
\section{test}
\lipsum[1]
\section{test}
\lipsum[1]
\section{test}
\lipsum[1]
\section{test}
\lipsum[1]
\section{test}
\lipsum[1]
\section{test}
\lipsum[1]
\section{test}
\lipsum[1]
\section{test}
\lipsum[1]
\section{test}
\lipsum[1]
\section{test}
\lipsum[1]
\section{test}
\lipsum[1]
\section{test}
\lipsum[1]
\section{test}
\lipsum[1]
\section{test}
\lipsum[1]
\section{test}
\lipsum[1]
\section{test}
\lipsum[1]
\section{test}
\lipsum[1]
\section{test}
\lipsum[1]
\section{test}
\lipsum[1]
\section{test}
\lipsum[1]
\section{test}
\lipsum[1]
\section{test}
\lipsum[1]
\section{test}
\lipsum[1]
\section{test}
\lipsum[1]
\section{test}
\lipsum[1]
\section{test}
\lipsum[1]
\end{document}
Output:
