Cook Manicotti 7 minutes; drain and rinse in cool water. Set aside.
Meanwhile, heat oil in large skillet over medium heat. Add garlic and let cook for about 3 minutes then stir in spinach; continue cooking 5 minutes. Set aside to cool
Beat eggs lightly in medium bowl. Stir in ricotta cheese, basil and salt.
Spread 3/4 cup Marinara Sauce over bottom of 13x9 baking dish. Fill Manicotti with spinach mixture (use piping bag or zip-lock bag with the tip cut off); place in dish and cover with the remaining Marinara Sauce. Then sprinkle Parmesan over top and bake, covered 30 minutes. Uncover; continue baking 5-10 minutes or until cheese is melted.