Preheat oven to 180°C. Cook the ravioli according to package directions and drain.
In a lasagne dish, place a layer of cooked ravioli, then cover with some of the marinara sauce. Continue layering, finishing with the marinara sauce.
Bake for 20 minutes then remove from the oven and add the tomatoes and cheeses, covering the top. Return to oven for 15 minutes or until tomatoes have started to blister.
Garnish with basil leaves and enjoy the easiest lasagne you'll ever make!