02In a mixing bowl, combine ricotta cheese with parmesan cheese; set aside.
03In an 8x8 baking dish, spread about half the pasta sauce evenly at the bottom of the dish. Place 2 pieces of lasagna noodles on top of the sauce. Evenly spread half of the cheese mixture over the lasagna noodles.
04Lay slices of tomato over the cheese. Cover with remaining sauce.
05Add another layer of lasagna noodles, the remaining cheese mixture, and a layer of tomato slices. Sprinkle with mozzarella cheese.
06Cover lasagna with aluminum foil and bake for 35 minutes.