Step #3 Heat remaining dressing in a nonstick skillet over medium high heat.
Step #4 Roll the meat mixture into little meatballs, 1/2" to 3/4" in diameter.
Step #5 Cook meatballs in skillet for 8 mins, turning every once in awhile.
Step #6 Drain any extra fat off.
Step #7 Add beef stock, & let simmer uncovered on low for 5 mins.
Step #8 When meatballs are done, put them in a bowl & pour the sauce over them.
Step #9 Refigerate while you cook & season the rice.
Step #10 When you are ready to roll, have meatballs, a bowl of salty water to dip your hands in to keep the rice from sticking, rice, & a plate for the finished rice balls in front of you.
Step #11 Take about 1/4 c of rice in your hand & shape it into a flat rectangular shape.
Step #12 Place a meatball on top of the rice, & then wrap the rice around it.
Step #13 Pat the rice into place, not compressing the rice, & then carefully squeeze the ball together, just getting extra air & moisture out so the rice sticks to the meatball.
Step #14 Repeat about 19 times.
Step #15 This took me a while, but I imagine you can get faster with practice.
Step #16 (I include the time for cooking the sushi rice in the cook time).