Хлеба и масти, наравно !

Сланину и јаја !

you should say:what do you want for your breakfast? not does not while ^_^

"Šta voliš da jedeš? ; Šta biste želeli? "  A Vi, DA LI doručkujete? 

which means: 

What do you like to eat? , What would you like? "  And you, do you have breakfast? 

Ja volim da jedem kajgana jaja i meso. 

Do not translate literally like it would be in English. 

Ja obicno jedem voce za dorucak.

I usually eat fruits for breakfast.