Preheat your oven to 400°F and line a large baking sheet with parchment paper.
Press the tofu for 15 minutes to remove excess moisture, then cut it into 1-inch cubes.
In a medium bowl, toss the tofu cubes with arrowroot powder, sea salt, and black pepper until evenly coated.
Spread the tofu on the prepared baking sheet and bake for 25-30 minutes, flipping halfway through, until golden and crispy.
While the tofu is baking, whisk together the peanut butter, coconut aminos, rice vinegar, grated ginger, minced garlic, and sriracha in a small bowl until smooth.
Steam the broccoli florets and edamame in a steamer basket over boiling water until tender-crisp, about 5 minutes.
Remove the crispy tofu from the oven, toss it in the peanut sauce until well-coated, and serve immediately alongside the steamed vegetables.