The Greeks and Romans during ancient Greek and Roman times ate what they planted, hunted and got from the ocean. For them, they fished and had seafood, olives, and fruits like apples, plums, cherries and pears. They also had milk and honey for sweetness. The biggest thing that Greeks ate was bread. They are also known for drinking wine.
In Rome, they are similar to the Greeks by what they ate. Most of the meat came from the seafood in the ocean. They also ate the crops that were grown. However, a delicacy that only the very wealthy people in Rome ate was tongue. The tongue came from birds or flamingoes. They also drank plenty of wine just like the Greeks.
Greeks would eat dinner choosing eggs = quail and hens = fish, legumes, olives, cheeses, breads, figs, and any vegetables they could grow. They might include arugula, asparagus, cabbage, carrots, and cucumbers. Roman breakfasts consisted of unmixed wine, bread was dipped in the wine, sometimes accompanied by figs or other fruits. Olives or a small piece of cheese or different types of fried pancakes.
Lunch, late midda, was considered the most important meal. This was bread, olives, cheese, perhaps fish, and fruit. Dinner - without women present - may have included honey cake, olives, bread but in its second half, wine was most important.