Vegan Tofu Spinach Lasagna

Name: Vegan Tofu Spinach Lasagna
Cuisine: Italian
Ingredients: 15 lasagna noodles (I used whole wheat); 1/2 onion (minced); 5 oz frozen spinach; 1 box firm tofu (14 ounces); 1 box extra-firm tofu (14 ounces); 1 1/2 tablespoon McKay's vegan chicken seasoning; 1/2 tablespoon Italian seasoning; 1/2 teaspoon nutritional yeast flakes; 1/4 teaspoon garlic powder; 1 teaspoon salt; 1/2 teaspoon lemon juice; 1/2 cup Daiya mozzarella vegan cheese (divided in half); 1 jar vegan marinara (24 ounces)