Baked Pumpkin, Sweet Potato, and Coconut Milk Soup

Preheat an oven to 375 degrees F (190 degrees C). Puncture acorn squash and pumpkin in several places using a knife. Wrap the sweet potato in aluminum foil. Place squash, pumpkin, and sweet potato on a baking sheet. Bake in the preheated oven until the pumpkin begins to cave in and the skin browns, about 2 hours. Remove the skin, then chop the sweet potatoes. Skin, seed, and chop the pumpkin and acorn squash. Place the sweet potatoes, pumpkin, and acorn squash in a large pot and mash until smooth. Stir in the coconut milk until incorporated, reserving 1/2 cup for garnish, then stir in the chicken broth. Season with salt, pepper, lime juice, and ground ginger. Cook over medium heat until heated through. Serve with a lime wedge and a drizzle of coconut milk.