I should note that there are indeed multiple references to the Roman Empire on the page; take a look at the sidebar.

This is the text in question from the History section:

> The earliest known reference to French toast is in the Apicius, a collection of Latin recipes dating to the 1st century CE, where it is described as simply aliter dulcia 'another sweet dish'.[8] The recipe says to "Break [slice] fine white bread, crust removed, into rather large pieces which soak in milk [and beaten eggs] fry in oil, cover with honey and serve".[9]

There are two sentences, and both of them are lies. There is no reference to French toast in the Apicius, and the quote given in the second sentence -- as you've already noted -- doesn't come from the Apicius. Wikipedia is supporting the claim that a 1st-century work refers to French toast by citing material originally written in the 20th century.

The idea that French toast appears in the Apicius is something the wikipedia author just made up, yes.