TRANSFORMED RESTAURANT
From breakfast to dinner, the transformation is complete.

Solution

UPDATE 2:
new style, same concept, but more transformation:
the buffet area has two stainless steel hoods above the central counters.
One above the cooking area is really a fume hood, the second hides a bar cabinet that is extracted when the buffet closes and opens the lounge bar.
The bar also has 4 small pull tables to enjoy a leisurely drink.
And again stools that turn into chairs,
tables hiding under counters that turn into decorative panels,
colored lights that change the atmosphere,
curtains and decorative panels hanging from the ceiling to hide and divide.