You can make bread dough in just a few minutes -- and this recipe is here to prove that idea. Just beat together eggs, milk, olive oil, flour, baking powder, and salt until combined. Don't worry if it seems thin; it will set up nicely in the oven. The dough (or batter) is layered with sliced cheese and ham along with mayonnaise and ketchup (in that precise order) and more dough, then baked until the bread is golden brown and the fillings are heated through. Slice and serve while warm.