You may also grill the vegetable strips. Decrease oven temperature to 350°. Assemble the lasagna: Drizzle the bottom of an 8x12 or 9x13 pan with olive oil. Spread 1 1/2 cups of the pasta sauce on the bottom of an oblong dish, about 13 x 9 inches. Then place a single layer of vegetables … With a fork, mix together the ricotta, egg white, chives, and remaining salt and pepper. Look no further as here is the perfect recipe to preapre the best veg lasagna with a host of veggies combined with cheese and … Spread 1 cup of the marinara sauce into the bottom of the baking dish and layer with 4 lasagna noodles. Spread with half of the ricotta mixture, half of the roasted vegetables… Looking for easy recipe to prepare the Italian cuisine speciality, veg lasagna?