Butternut Squash Potstickers

Name: Butternut Squash Potstickers
Ingredients: 1 (2 lb.) butternut squash; 2 tsp. extra-virgin olive oil; Kosher salt; Freshly ground black pepper; 1 tbsp. minced ginger; 3 cloves garlic, minced; 3 green onions, thinly sliced; 1 tbsp. low-sodium soy sauce; 1 tbsp. rice vinegar; 1/4 tsp. crushed red pepper flakes; 40 dumpling wrappers; Vegetable oil, for cooking; 1/4 c. low-sodium soy sauce; 1 tsp. sesame oil; 1 green onion, thinly sliced; 1 tsp. sesame seeds