Eating standing up at the counter is quick, but sitting down for even ten minutes gives the morning a beginning.
Clear one end of the table the night before so it is ready. Keep a few simple things within reach: bread, fruit, a jar of oats, a kettle that is already filled.
Leave the phone in another room for those ten minutes. Look out of the window, talk to whoever is up, or just enjoy the quiet.
It is a small habit, and it tends to make the rest of the day feel less hurried.