"This is comfort food at its best, but so healthy and light compared to its rice-based counterpart. When making this recipe, make sure you have all the ingredients chopped, prepped, and ready as the final stir-fry comes together in 10 minutes!"
Stir chicken, 1 tablespoon soy sauce, brown sugar, 1 teaspoon sesame oil, and cornstarch together in a large bowl.
Heat a wok or large saucepan over high heat. Swirl in 1 tablespoon vegetable oil. Spread chicken mixture in a single layer over the surface of the wok; cook for 1 minute. Flip and toss chicken. Spread out again; cook and stir for 2 minutes more. Transfer chicken to a plate.
Heat remaining 2 tablespoons vegetable oil in the wok over medium heat. Add light green part of the scallions, garlic, and ginger; cook and stir until fragrant and softened, 1 to 2 minutes.
Stir 4 tablespoons soy sauce, cauliflower rice, and 1/2 teaspoon salt into the wok. Cook until cauliflower starts to crisp, about 3 minutes. Stir peas and carrots into the wok. Cook, stirring occasionally, until warmed through, about 5 minutes.
Make a well in the center of the wok; pour in beaten eggs. Stir eggs with a spatula until scrambled, about 2 minutes. Stir in chicken, remaining 1 tablespoon soy sauce, remaining 1 teaspoon sesame oil, dark green parts of the scallions, pineapple, peanuts, and rice vinegar.
Chicken can be marinated for 1 to 6 hours if desired.
If you can't find cauliflower rice at the store, you can make it at home. Remove the core from a 2-pound cauliflower and cut it into large florets. Pulse florets in a food processor in batches until finely chopped, 8 to 10 long pulses per batch.
Substitute canned pineapple for the fresh pineapple if desired.