Apart from being 6x6, this is a pretty standard Sudoku.
L | P | A | V | I | Z |
Z | V | I | L | P | A |
I | Z | L | A | V | P |
V | A | P | I | Z | L |
P | L | V | Z | A | I |
A | I | Z | P | L | V |
VILLA PIZZA, a restaurant on the 1st floor
The strings of letters trace out the additional letters D and K on the grid.