Preheat your oven to 400°F and line a baking sheet with parchment paper.
Press the firm tofu between paper towels for 10 minutes to remove moisture, then cut into 1-inch cubes.
Slice the zucchini into half-moons and chop the red bell pepper into bite-sized pieces.
Toss the vegetables on the baking sheet with half of the olive oil, sea salt, and black pepper, then roast for 18 minutes until tender.
Cook the chickpea rotini in boiling water according to the package instructions, then drain and set aside.
Heat the remaining olive oil in a large skillet over medium-high heat and sear the tofu cubes until they are golden and crispy on all sides.
In a small bowl, whisk together the lemon juice, lemon zest, nutritional yeast, and minced garlic to create a thick sauce.
Add the cooked pasta and roasted vegetables to the skillet with the tofu, pour the lemon sauce over the top, and toss gently to combine.
Garnish the dish with fresh parsley before serving.