Preheat the broiler. Cook the rice as the label directs. Meanwhile, toss the cauliflower with 2 tablespoons vegetable oil and a generous pinch each of salt and pepper; spread on a rimmed baking sheet. Broil, stirring occasionally, until lightly charred and tender, about 10 minutes.
Heat the remaining 1 tablespoon vegetable oil in a large nonstick skillet over high heat. Add the peanuts and cook, stirring, until lightly toasted, about 1 minute. Remove to a small bowl with a slotted spoon and season with salt and pepper.
Add the snow peas, bell pepper and ginger to the skillet. Cook, stirring occasionally, until crisp-tender, 1 to 2 minutes. Add the scallions (white and green parts) and cauliflower; toss. Add the chili sauce and soy sauce and continue to cook, stirring often, until the vegetables are glazed, about 2 minutes.
Fluff the rice with a fork; top each serving with the stir-fry, toasted peanuts and cilantro.
Photograph by Ryan Dausch