Put the rice into a dry frying pan over medium heat. Cook low and slow, tossing and stirring occasionally, until the rice is deeply toasted. About 40 minutes Allow to cool, then grind in a coffee grinder or mortar and pestle until it becomes the texture of fine sand.
Bring water to a boil and season with salt and pepper. Add the couscous.
Bring a frying pan to high heat and add the turkey or pork with a little oil. Season with salt and cook on high for about 8-10 minutes to brown on the edges and cook through.
Strain the couscous and add it to a bowl with the turkey. Mix in the shallots, fish sauce, soy sauce, and lime juice. Add in about a tablespoon of the rice powder.
Allow this mixture to cool for 2 hours in the fridge.
Add in the cucumber, fresno chilis, scallion, and herbs. Add a drizzle of olive oil and a pinch of salt. Toss to combine. Taste and adjust seasoning as needed. I added more lime and a splash of soy sauce to mine. You may want to add more heat or more fish sauce too. Or even more salt. Some oil can help too if it feels dry.
Serve and top with more chili powder and rice powder.