Two prawns, one piece of chicken breast, an onsen egg, a slice of sweet potato, one baby corn and a mushroom - those are what the chef decided to put into the Tempura Don today. The menu states that this is subject to change, so you may not get the same items when you visit.
The batter wasn't as crisp as I'd have liked it to be but at least the amount of sauce splashed on was just right and didn't overwhelm.
Do note that the ocha (tea) here is not complimentary. They charge $2++ per person but it's free flow.