Prepare the sauce by heating the oil and sauteing the garlic and onions
for a minute. Add the chopped beans, and cook the mixture, stirring it,
for several minutes longer. Add the tomato puree, oregano, basil, and
pepper. Bring the sauce to a boil, and simmer for 5 minutes.
Preheat the oven to 350.
To assemble the lasagne, spread a thin layer of sauce on the bottom of a
9 x 13 baking pan. Arrange 3 noodles. Cover the noodles with 1/3 third
of the sauce, half the ricotta, half the mozzarella, and 1/4 cup parmesan.
Repeat with a layer of noodles, sauce, ricotta, mozzarella, and parmesan.
Finish off with layers of the remaining noodles and sauce and Parmesan.
Bake 40 minutes uncovered.
