Step 1

Preheat oven to 375 degrees. Toss cauliflower and onion on rimmed baking sheet with olive oil spray, salt, and pepper. Roast in oven for about 45 minutes, or until golden, stirring halfway through. Cool for 20 minutes.

Step 2

Reduce oven temperature to 350 degrees. While veggie mixture is cooking, heat olive oil spray in medium skillet. Add tofu crumbles, salt, pepper, and garlic powder. Cook until golden brown, stirring constantly, about 8 minutes.

Step 3

Put cooled veggies into a food processor; pulse 3-4 times or until coarsely chopped.

Step 4

In a greased 8x8 inch baking dish, spread 3 tablespoons of pasta sauce. Add a layer of lasagna noodles and top with crumbled tofu. Spread 1/3 of remaining pasta sauce onto tofu, top with another layer of noodles. On top of this, spread chopped veggie mixture and another 1/3 of pasta sauce.Top with a final layer of noodles, the remaining pasta sauce, and cheese, if using.

Step 5

Bake for 40 minutes.