How To Use Leftover Sushi Rice (Besides Making Sushi)? #1. Use Leftover Sushi Rice To Make Mochi. #2. Using Leftover Sushi Rice To Make Risotto. #3. Using Leftover Sushi Rice To Make Creamy Pudding. #4. Sushi Rice Pudding With Coconut Milk. #5. Using Leftover Sushi Rice To Make Tasty Fried Rice. Click to see full answer. Regarding this, how do you reuse sushi rice?Do not store in the refrigerator. Now take the leftover sushi rice and reheat it in a steamer or microwave. Put the steaming rice in a bowl (see my review of sushi sets) and mix it with sushi vinegar. Use a wooden spoon to mix the rice with vinegar.One may also ask, what can you do with leftover sushi? Five Things You Can Make With Leftover Sushi Morning-After Eggs and Rice. Some people love leftover sushi as-is for their breakfast, but if you prefer to alter it a bit, heat up the leftovers and throw two fried eggs over them. Fried Snacks. If you’re up late and craving something greasy, consider frying your sushi. Scattered Sushi. Bean Curd Pouches. Soup. Also to know, what else can you do with sushi rice? 3 Ways to Use Up a Pot of Sushi Rice Make a Dragon Roll. Let’s imagine you’ve just finished cooking a perfect pot of sushi rice; obviously the first thing you need to make is really good sushi! Make Onigiri. So, you’ve made great sushi and now you need something for tomorrow’s lunch? Make Homemade Mochi. Can you use day old rice for sushi?Keeping the container sealed and airtight can protect against both of these. Let cooked Sushi Rice (both brown and white) cool to room temperature before storing it in the refrigerator. Cooked Sushi Rice will last about 3-5 days in the refrigerator but it is best to use it within 2 days.