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\usepackage[latin1]{inputenc}
\usepackage{amsmath}
\usepackage{amsfonts}
\usepackage{amssymb}
\usepackage{fourier}
\usepackage{multicol}
\setlength{\columnsep}{15mm}
\usepackage[left=1cm,right=1cm,top=1cm,bottom=1cm]{geometry}
\usepackage{tabularray}
\DefTblrTemplate{firsthead, middlehead,lasthead}{default}{} % Hide table label


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%% Begin Document %%%%%%%%%%

\begin{document}

\pagestyle{empty}

\begin{center}
{\LARGE \textbf{\textit{Weekly Menu}}}
\end{center}

\noindent{}\begin{tblr}
[
	caption = {},
	label   = {tb:},
%	theme   = {custom1}
]{
	width      = {\columnwidth},
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 & Breakfast & Lunch & Dinner \\
M &&& \\
Tu &&& \\
W &&& \\
Th &&& \\
F &&& \\
Sa &&& \\
Su &&& \\
\end{tblr}

\end{document}