Preheat the oven to 400°F and line a large sheet pan with parchment paper for easy cleanup.
Wrap the firm tofu in a clean kitchen towel and place a heavy skillet on top for 10 minutes to press out excess moisture.
Slice the pressed tofu into 1-inch cubes and toss them in a bowl with tamari and half of the garlic powder.
In a small bowl, whisk together the nutritional yeast, hemp seeds, and the remaining garlic powder to create the breading.
Place the broccoli florets and sliced red bell pepper on the sheet pan, drizzling with olive oil and seasoning with sea salt and black pepper.
Roast the vegetables for 18-20 minutes, tossing halfway through, until they are tender and have developed caramelized edges.
While the vegetables are roasting, roll each tofu cube in the nutritional yeast and hemp seed mixture until thoroughly coated.
Heat a large non-stick skillet over medium-high heat and sear the tofu cubes for 3 minutes per side until they are golden and crispy.
Plate the crispy tofu alongside the roasted vegetables and serve immediately while everything is hot and fresh.