Step 1

Preheat oven to 400 degrees F (200 degrees C). Spray a large baking sheet with cooking spray.

Step 2

Arrange zucchini, bell peppers, mushrooms, and onion wedges on prepared baking sheet. Scatter basil and garlic over vegetables and spray with cooking spray. Season with salt and black pepper.

Step 3

Bake in preheated oven until vegetables are lightly browned and tender, 10 to 25 minutes.

Step 4

Bring a large pot of lightly salted water to a boil. Cook lasagna in the boiling water, stirring occasionally until cooked through but firm to the bite, about 8 minutes. Drain.

Step 5

Bring pasta sauce to a simmer in a saucepan over medium-high heat. Mix mozzarella cheese and Parmesan cheese in a bowl.

Step 6

Pour about 1/3 cup pasta sauce in a 9x13-inch baking dish. Layer 3 lasagna noodles over sauce. Spread about of 1/4 the roasted vegetables over noodles and top with about 1/4 the sauce. Sprinkle 1/4 of the mozzarella-Parmesan cheese mixture over the sauce. Repeat layers 3 more times, ending with the cheese.

Step 7

Bake in preheated oven until cheese is melted and sauce is bubbly, 20 to 25 minutes. Allow lasagna to rest for 10 minutes before slicing.