what does Mrs. Gibbs serve her husband for breakfast?

Who's to say? It's something imaginary from a pantomime stove. But it's been the same thing for years on end, because that's the way things go in Our Town.

It's French toast on the wedding day. That's a lot of work, but Julia needs something to occupy her amid the stress of the wedding.

In Act I, there's bacon as part of the meal, I believe.