Donburi made by the Missus:
-She marinated thin slices of raw tuna in ponzu, sake and what else. The leftover marinade was poured over the rice to season it before she placed the pieces of tuna on top.
-Smoked salmon with capers.
-A spoon of “tobikko/flying fish roe”
-a generous portion of locally-made (up the Abe River in Shizuoka City) “Wasabi zuke/chopped wasabi stems and flowers fermented in “sake kasu/sake white lees” (all from Shizuoka Prefecture!)

There is another form of sushi, partly similar to Chirashizushi called Donburi Sushi.
It is popular not only at sushi restaurants, especially in Hokkaido Island, but also in Japanese homes all over Japan!
The moment you know how to prepare sushi rice, it is great fun!
You can make donburi vegan, vegetarian, seafood or even meat.
It is entirely up to your imagination!

Here is another example by the Missus:

Plain steamed rice topped with slices of “akami”/ lean tuna part, avocado salad with mayonnaise and wasabi pickles (the latter provided a nice balance with a spicy touch), boiled sirasu/whitebait sprinkled with “hijiki” seaweed and “tobikko”/flying fish roe.
The tobikko added a nice colour finish touh. It is quite cheap down here in Shizuoka City.
I poured a little Shizuoka-made wasabi dressing on top. This dressing is a lot milder than pure grated wasabi with a little sweetness which combines well with the fish!

I go very often to Hokkaido and have collected quite a few samples of Donburi:

The following three were taken near Abashiri a short distance from Shiretoko, one of the Japanese World Nature Heritage in the far North:

“Oyako” Donburi/”Mother and Child”. In this case it means Salmon and Salmon Roe!

“Uni” Donburi, Sea Urchin Donburi. Absolutely extravagant!

Uni to Ikura Donburi, even more extravagant!

The next four were savoured in Sapporo City, the capital of Hokkaido:

From bottom, clockwise:
“Uni” (Sea Urchin), “Kani Tsume” (Crab legs), “Maguro” (Tuna), “Nanban Ebi” ( large prawn variety)

From bottom, clockwise:
“Hotate” (Scallops), “Uni” (Sea urchin), “Ika” (Squid), “Kani Tsume” (Crab legs)

From top middle clockwise:
“Ikura” (salmon roe), “Kazu no ko” (herring roe), “Kampachi” (Amberjack), “Tako” (octopus), “Sake” (raw salmon), “Hotate” (scallops), in the centre, “Uni” (sea urchin)

From bottom, clockwise:
“Hotate” (Scallops), “Ikura” (Salmon roe), “Kazu no Ko” (Herring roe), “Kampachi” (Amberjack), “Uni” ( Sea Urchin), “Kani Tsume” (Crab leg), “Ebi” (Boiled prawn)