Do you have some good ideas/ recipes for preparing a great breakfast in advance, so it does not take so long every morning?

I like having a few prepared items in advance. For instance left over cooked rice from dinner, to prepare a Korean inspired breakfast: a bol of rice with sunny side up egg, sesame oil, soy sauce and sprinkled green onions. I got this idea from a Korean family in youtube and it has helped me create some other spin offs. Love it!