In a medium bowl, combine tamari, fresh lime juice, fresh orange juice, sesame oil, minced garlic, grated ginger, and cashew butter. Gradually add water until you reach your desired consistency.

Bring a large pot of water to a boil. Add soba noodles and cook according to package instructions. Drain and rinse under cold water, then drizzle with sesame oil.

In a steamer basket over boiling water, add broccoli florets and chopped scallions. Steam for 2-4 minutes, or roast in the oven at 400°F for 15-20 minutes.

Layer soba noodles, steamed broccoli, scallions, and cubed baked tofu in serving bowls. Drizzle with cashew sauce, sprinkle with toasted cashews, and serve with sriracha and tamari.