Was really looking forward to making this meal, cause it was certainly one of the dishes I was familiar with when in Japan last year. Below is the recipe i used, and made a few amendments especially around the vegetables that i prepared just to bring some extra colour to the dish.
This recipe was made up of a couple of different components - you had to get ready the sauce, the batter, the veggies, the rice, as well as skin and devain the prawns so that everything is ready for cooking at the same time.
So Step 1: Making the sauce, consists of seaweed, mirin, soy sauce, raw sugar water and dried bonito flakes, bring to the boil then lower the heat for 15minutes.
Next i prepared the batter and it's important that you use really cold water, as you don't want the gluten to develop too quickly, because this will make the batter sticky and dough like, which is the opposite to what tempura is like. Once I had it prepared i then put it in the fridge until i was ready for it.

The third and fourth component that needed to get ready was the veggies and prawns. The veggies I decided to use were two different types of capsicum to bring in colour as well as zucchini and beans as they are so readily available at the moment.
Totally cheated with the prawns and just got frozen prawns, where as fresh ones would have been so much better and would have accentuated the dish so much more, especially on presentation, which i would consider doing next time.

In the picture to the left you can see that I am making a slight cut down the back of the prawn and slightly down the front so that it remains flat when in the pan.
Now that I have all the components ready i can start getting the oil on to start the deep frying process and dipping my ingredients in the batter ( which has been chilling in the fridge).
Above you can see both the veggies and prawns starting to become crisp and golden. However, i was mindful of not over cooking the pawns, as i didn't want them to come rubbery. Once each item had cooked i drained on a paper towel, of course sampling to ensure that they had been cooked to the correct degree. I have actually surprised myself with how well this worked out, On reflection i would probably have cooked things a little longer just to allow them to crispen up a little more.

With everything cooked up, it was then up to the presentation. Started off with the good old white rice on the bottom (remembering that you need to wash the rice prior to cooking). Then i ripped up bits of nori and added that to the rice. Then it was a matter of trying to get some of the colours to come through and use the different heights of the veggies to try and present it nicely (with the deep frying its hard to make it look colourful), you then have the prawns in the front of the bowl ( this is were fresh big king prawns would have looked amazing). I then topped it off with a few more strips of ripped nori and then spooned over a couple of Tablespoons of the sauce that I made at the very start.
This dish was certainly a lot easier than i thought i was going to be, however there are certainly improvements that could be made that i have noted already. Again the flexibility of ingredients that can be used is there and allows for people to put their own flavour and likes to the dish.