Boil Pasta: Cook jumbo shells in heavily salted boiling water for 2 minutes less than al dente. Drain, ice bath shock, and pat dry.
Dry Zucchini: Grate the zucchini and squeeze intensely in a clean kitchen towel to expel all internal water.
Dry Zucchini: Grate the zucchini and squeeze intensely in a clean kitchen towel to expel all internal water.
Mix Filling: Combine drained ricotta, squeezed zucchini, raw sweet corn, minced garlic, basil, egg, Parmigiano-Reggiano, and half of the mozzarella. Season with salt and pepper.
Sauce Pan: Pour the cherry tomato sauce evenly over the base of a 9x13-inch baking dish.
Stuff Shells: Open each par-cooked pasta shell gently and spoon the ricotta mixture generously into the cavity. Arrange cleanly in the sauced dish.
Cheese Topping: Scatter the remaining mozzarella cheese over the entire surface of the assembled shells.
Bake: Cover with foil and bake at 375°F (190°C) for 20 minutes. Remove foil and bake uncovered for 10 minutes until bubbling and golden.
Rest: Let sit for 10 minutes to allow the cheese filling to set structurally before plating.
Dry Zucchini: Grate the zucchini and squeeze intensely in a clean kitchen towel to expel all internal water.