Preheat oven to 400°F and line a baking sheet with parchment paper.
Dice the bell pepper and zucchini into small cubes, toss with half the olive oil, salt, and pepper, then roast for 15 minutes until tender.
While vegetables roast, drain the tofu and pat dry with a clean towel to remove excess moisture.
Heat the remaining oil in a large non-stick skillet over medium heat.
Crumble the tofu into the skillet using your hands or a fork to create bite-sized pieces.
Sprinkle the turmeric, garlic powder, and nutritional yeast over the tofu, stirring well to coat evenly.
Cook the tofu for 5-7 minutes, stirring occasionally until slightly golden.
Fold in the roasted vegetables and fresh spinach, cooking until the spinach is just wilted.
Serve warm, seasoned with additional black pepper if desired.