Trying to make edible brick with chicken and vegetables from Delicious in Dungeon

Have you ever wandered how brick would taste if you could eat it. Well that is something I wondered after watching the anime Dungeon Meshi (Delicious in Dungeon). And NO this one doesn't taste like dirt. This dish is inspired on the Japanese dished called Oyakodon, with many changes to make it look like the one Senshi made. With this dish you will literally even want to eat the plate. Hope you like this delicious dish as much as I did.
00:22 - Mashed Potato and egg plant crust (brick)
04:55- Barley
05:58- Chicken Sauce
06:15- Chicken and Vegetables
07:53- Egg yolk Sauce
Ingredients
Mashed Potato and egg plant crust (brick):
-1 eggplant
-5 potatoes
-2 garlic cloves
-1 tbsp Salt
-1/2 tbsp black pepper
-1 egg (only the egg white)
-1/2 cup of potato starch (you can also use cornstarch)
Barley:
Chicken Sauce:
-1/2 cup water
-1 tbsp dashi
-2 tbsp mirin
-2 tbsp brow sugar
-3-2 tbsp of cornstarch
Chicken and Vegetables
-1 big onion
-450gr of chicken
- 1tbsp butter
-parsley
-scallions or chives
Egg yolk Sauce:
-1 egg yolk
-1/4 cup of olive oil
-pinch of salt