Meanwhile, heat 2 tablespoons oil in a large wok or nonstick skillet. Saute the carrots, shallot, and white scallions over high heat until soft and beginning to brown, about 6 minutes. Season with salt. Add the garlic, ginger, and green scallions and stir fry until fragrant, another 2 minutes. Fold in the quinoa and stir fry until well-coated in the vegetable mixture and beginning to toast, 3 minutes. Stir in the soy sauce, sesame oil, and sriracha.