Preheat oven to 425 degrees. In a medium sized pot, heat 1 tablespoon of oil over low heat. Add the garlic and cook for 1 min. Add the tomato puree. Raise the heat to allow the sauce to simmer. Stir in salt. Cook for 15 min. Prepare the gnocchi as directed on the package. Cook half the gnocchi, remove and place in a small baking vessel (about 2 qt size). Add in half the sauce and coat the gnocchi. Arrange half of the mozzarella around the gnocchi. Top with half of the parmesan. Cook the second half of the gnocchi and repeat the rest of the process. You may not need all of the sauce. Place in oven and cook for 10 min or until cheese begins to brown. Remove and let it rest 10 min. Serve with basil garnish.