I guess if you aren't able to get a reservation at Bouchon, the next best thing would be to eat at Bouchon Bakery. Well.... not quite, but at least it has Bouchon in its name and you can throw that out of your lips hoping people don't catch the 'bakery' part and let everyone think you went to the real deal.
Located at the casino level of the Venetian, this little coffee place offers up a small variety of pastries and sandwiches and of course coffee. So instead of going to Bouchon for breakfast (it's hella expensive), just have breakfast at Bouchon Bakery and call it a morning.