Special equipment: Sixteen 8 1/2-inch rice paper wrappers (also called summer roll wrappers or banh trang in Vietnamese)
For the squash: Preheat the oven to 450 degrees F. Place the squash in a mixing bowl and drizzle with olive oil. Sprinkle with the chile flakes and a good amount of salt. Place on a parchment-lined baking tray and roast until golden brown, about 10 minutes. Remove and refrigerate until needed.
For the dressing: Combine the anchovies, avocado, garlic, parsley, scallions, cilantro and 1/8 cup water in food processor or blender and puree. Add the mayo, chile juice, lemon juice and salt and puree again until combined. This can be done the day before.
For the kale salad: Place the kale into a mixing bowl with 2 tablespoons of the dressing and squeeze lightly with your hands to soften the tough leaves. Add the arugula, feta, half the pumpkin seeds and half the pomegranate seeds and taste for seasoning, adding salt if needed.
To serve: Fill a mixing bowl with warm water and soak 1 piece of rice paper until pliable, but not entirely soft (10 to 15 seconds). Lay it flat on a clean work surface, ensuring that it sticks to the surface. Continue until you have 4 to 6 wrappers stuck to the surface.
Place a strip of roasted butternut squash across each wrapper, 2 inches from the bottom of each wrapper. On top of the strips, lay some of the dressed kale salad, using your hands to form a log-shaped pile. Fold the bottom edge of the wrapper up and the sides in against the filling. Roll up to the top edge, pulling back to tighten the roll as you make them (this is the reason you want the wrapper actually stuck to the surface, it will allow you to get more tension while rolling). Place a damp towel over the rolls (this will keep them moist and soft) and repeat until you have 16 rolls made. These can be assembled up to 1 hour before the guests arrive.
Slice the rolls into 3 to 4 pieces so that they look like sushi and arrange on a serving platter. Sprinkle with the remaining pumpkin seeds and pomegranate seeds and serve with a ramekin of the avocado green goddess dressing as a dipping sauce.