Preheat oven to 400°F and line a baking sheet with parchment paper.
Toss broccoli florets and sliced bell peppers with 0.5 tbsp olive oil, 0.125 tsp sea salt, and 0.125 tsp black pepper.
Spread the vegetables on the baking sheet and roast for 18 minutes until tender and slightly charred.
Press the extra firm tofu to remove excess moisture, then cut into 1-inch cubes.
In a shallow bowl, whisk together the nutritional yeast, garlic powder, and onion powder.
Toss the tofu cubes in the tamari, then dredge them in the nutritional yeast mixture until evenly coated.
Heat the remaining 0.5 tbsp olive oil in a non-stick skillet over medium-high heat.
Add the tofu to the skillet and sear for 3 minutes per side until a golden, crispy crust forms.
Serve the crispy tofu immediately alongside the roasted vegetables for a clean and balanced meal.