Stir the vegan yogurt with the lime juice and 2 tablespoons of the minced cilantro. Set the sauce aside.
Rinse the rice under cold water until the water runs mostly clear, then cook according to the package instructions.
While the rice cooks, slice the green onions, halve the tomatoes, shred the cabbage, mince the cilantro, and slice the avocado.
Place the broccoli in a microwave-safe bowl with a splash of water. Microwave for 1 minute 30 seconds, then continue in 30-second increments only if needed.
Heat the oil in a large sauté pan over medium heat. Add the tofu nuggets first and sauté for 4–6 minutes, turning occasionally, until hot and lightly browned.
Add the purple cabbage and cook for 2–3 minutes, until slightly softened but still crisp. Add the tomatoes and cook for 1–2 minutes, just until warmed and beginning to soften.
Divide the rice between 2 bowls. Add the broccoli, tofu and sautéed vegetables, and avocado. Top with the cilantro-lime yogurt sauce, green onions, remaining cilantro, and red pepper flakes to taste.
Serve the bowls immediately while the tofu and vegetables are warm.
For meal prep, refrigerate the rice, cooked vegetables, and sauce separately for up to 3 days. Add the avocado after reheating.