Thinly slice the sirloin steak into 1 ½” x 1 ½” pieces. Place in a medium mixing bowl and top with kosher salt, sambal paste and soy sauce. If you use a fine salt, please decrease the amount of salt by half. Allow meat to marinate while you prep vegetables.
Thinly slice the cucumbers and radishes on a mandolin. If you don’t have a mandolin, you can use a very sharp knife to do this. Slice the scallion on a bias. Place all veggies on a plate and keep in the fridge until ready to assemble bowls.
Heat a medium non-stick skillet over HIGH heat. Heat until very hot. Then add the oil and heat for a few seconds. Add the meat. Do not move the meat until the bottoms get a very good sear about 3-4 minutes. When the pan starts to smoke a little, turn the heat down to medium-high. Stir the meat. Continue cooking until the meat is cooked through. Drizzle with sesame seed oil and turn off the heat.
In the meantime, heat the cauliflower rice in the microwave. I like to use pre-bought steamable cauliflower rice for convenience. Assemble the bowls, by placing in cauliflower rice, topped with meat, some cucumbers, radishes, kimchi and a sprinkling of scallions.