Meanwhile, bring a large pot of water to a boil, add salt
COOK pasta according to package directions
DRAIN pasta and toss with 1 tablespoon of olive oil then lay flat on a sheet tray to cool down
TOSS zucchini with remaining olive oil and thyme in a large bowl, season with salt and pepper
ARRANGE zucchini on a sheet tray and roast for 15-20 minutes, or until lightly browned
REMOVE from oven and decrease the oven to 375°F
SPRAY a 13x9 lasagne dish with olive oil, and pour 1 cup of the sauce onto the bottom of the pan
LAYER with 4 sheets of lasagne, then top with 1 cup of sauce, ¼ of the ricotta mixture, 1 tablespoon of Parmigiano cheese, and 1 layer of roasted zucchini
REPEAT this process for 3 additional layers
FINISH lasagne by topping with remaining sauce and Parmigiano cheese
COVER lasagne with foil and bake in the oven for 25-30 minutes, or until internal temperature reaches 165°F
