Place sugar, cornstarch, and salt in saucepan, and gradually whisk in coconut milk. Bring mixture to a boil over medium-low heat. Cook 5-10 minutes, or until thickened, whisking constantly. Turn off heat, stir in vanilla, then banana slices.
Line bottom of 11- x 7-inch baking dish with 24 cookies. Spread hot pudding over top, making sure bananas are submerged to prevent browning. Top with remaining 24 cookies, cover with plastic wrap, and cool. Refrigerate until cold. Top with whipped topping (if using).
Preheat oven to 350°F. Combine zucchini, brown sugar, coconut milk, coconut oil, and eggs. Combine flour, soda, salt, and cinnamon. Stir in zucchini mixture; spoon into a greased 8- x 4-inch loaf pan. Bake for 50 to 55 minutes.
Bring a large saucepan of salted water to a boil. Remove from heat; add noodles. Let sit, stirring occasionally, until al dente, about 4 minutes (time may vary by brand). Drain and rinse under cold running water.
Meanwhile, heat oil in a large saucepan over medium. Cook onion and garlic, stirring often, until softened and golden, about 3 minutes. Add ginger, turmeric, and 1 tsp. pepper and cook, stirring, just until fragrant, about 1 minute. Add coconut milk, honey, and ¼ cup water. Bring to a simmer; cook until flavors come together, about 5 minutes.
Mix fish sauce and noodles into broth; season with salt if needed. Divide among bowls and top with shredded coconut and more pepper.