This doesn't prompt for a filename, as I find it easier to just redirect the output via the command line.

#! perl -slw
use strict;
use Date::Manip;

sub prompt{ printf $_[ 0 ]; chomp( local $_ = <stdin> ); $_; }

my @breakfast = qw[ bagel cereal toast yogurt ];
my @lunch     = qw[ sandwich milkshake pb&j hoagie ];
my @dinner    = qw[ pasta rice chicken steak ];

my( $start, $end ) = ('')x 2;
$start = prompt 'Enter start date: ' until $start = ParseDate( $start 
+);
$end   = prompt 'Enter end   date: ' until $end   = ParseDate( $end   
+);

do{
    my $date = UnixDate( $start, '%F' );

    print $date, $/, '-' x length $date;
    print 'Breakfast: ', $breakfast[ rand @breakfast ];
    print 'Lunch    : ',     $lunch[ rand @lunch     ];
    print 'Dinner   : ',    $dinner[ rand @dinner    ];

    print '-' x length $date, $/;
} until(
    not Date_Cmp(
        $start = DateCalc( $start, '+1 day'  ),
        $end
    )
);

__END__
C:\test>stuff
Enter start date: 1st jan 2003
Enter end   date: 2003/02/01
Wednesday, January  1, 2003
---------------------------
Breakfast: toast
Lunch    : pb&j
Dinner   : rice
---------------------------

Thursday, January  2, 2003
--------------------------
Breakfast: bagel
Lunch    : hoagie
Dinner   : chicken
--------------------------

Friday, January  3, 2003
...
[download]