My wife and I love getting spicy shrimp rolls every time we go out for sushi. Here's a recipe that is very easy and very flavorful. Honestly, I think I even prefer my version over the restaurants.
Bring a medium pot of water to a rolling boil. Remove the pot from the heat. Add the shrimp and them sit in the water for 2-3 minutes until cooked through. Drain, then rinse under cold tap water to stop them from cooking further. Pat dry with paper towels.
Chop the shrimp into tiny pieces (no bigger than ¼-inch) and combine with the filling ingredients in a small bowl.
In a small pot, combine the rice vinegar, sugar, and salt. Set the heat to high and whisk until the sugar dissolves. Pour it over the rice and fold until combined.
Grab a bamboo mat and wrap it with plastic wrap (this prevents rice from sticking to it). Place a half sheet of nori on the bamboo mat. Spread on a thin layer of sushi rice but leave ½ inch uncovered at the bottom. Sprinkle on sesame seeds.
Flip the nori over so that the rice is underneath. Add a generous helping of the shrimp to the center.