Put the water to boil on the stove on medium heat and when it starts to boil add the rice and the lid on.
When it starts to boil again, reduce the heat to a minimum and boil for 15 minutes without mixing the rice.
In the meantime, mix the rice vinegar with the honey and the salt in a small bowl.
After the 15 minutes of boiling the rice, turn off the heat, pour the vinegar mix on the rice and mix it with the rice gently with a wooden spoon. Put the lid back on and leave to rest for 10 minutes.
Toppings
Cut the avocado in half, take out the core and cut the pulp in smaller chunks. Drizzle the juice from the half of the lemon on top to prevent oxidation.
Cut the smoked salmon into strips.
Cut the cucumber in quarters length-wise and take out the seeds. Then cut the remaining pulp into smaller chunks.
Cut the ends of the radishes and sliced them into fine pieces.
Sauce
Mix the yogurt with the minced garlic clove, the sriracha sauce and the salt.
Put the sauce into a plastic small bag, guide the liquid to one of the corners of the bag and make a know on the remaining bag. Cut the tip of the bag's corner so that you could easily squeeze the content out of it in the end, basically you now have a piping bag.
Serving
Prepare serving bowls (3 of them) and evenly distribute the rice in the bowls.
Put the vegetables and the smoked salmon on top of the rice.
Take the nori sheet and cut it into thin and short slices with a pair of scissors. Sprinkle the resulted strips on top of each bowl.
Use the piping bag and drizzle the sriracha-yogurt sauce.
Enjoy directly or in a traditional way with a bowl with soy sauce and wasabi paste.