1. Start by cutting the steak into small one inch cubes. Try to do this as even as possible so they cook evenly. Set steak bites in a glass bowl or a ziplock bag.
2. In a small saucepan combine rice vinegar, avocado oil, cane sugar, and salt. Cook on medium-low heat until the sugar dissolves. Pour mixture into cooked rice. Stir rice till the mixture is absorbed. Let cool.
3. Heat a cast-iron skillet or nonstick pan, once the skillet is hot add in your steak in a single layer. Let cook for 2-3 minutes and flip steak, cook for another minute or so. If you like a medium-well steak cook a little longer till the desired doneness.