Preheat the oven to 400 degrees.
Drain the tofu, wrap in a towel, and press gently to remove moisture. In a bowl, crumble the tofu with a fork and mix in the nutritional yeast, reserving a small amount to sprinkle on the top of the assembled lasagna.
Lightly coat an 8”x8” baking dish with cooking spray.
Spread a small amount of marinara sauce on the bottom of the dish. Top with a layer of lasagna noodles, then a layer of zucchini strips, and then half the tofu mixture. Repeat the layers.
Place one more layer of lasagna noodles on top and a light layer of marinara sauce. Sprinkle with the remaining nutritional yeast.
Cover and bake for 40 - 45 minutes.
Enjoy!