Preheat oven to 425℉. Cut butternut squash in half longways, scoop out seeds, and brush with olive oil. Sprinkle with garlic powder, pepper, and ⅛ tsp salt. Bake flesh-side down for 30-40 minutes until flesh is browned and soft when poked with fork.
Let cool 15 minutes. Scoop flesh out into food processor. Add onion and garlic cloves to food processor. Turn on and add oat milk through shoot. Process until smooth.
Add pureed squash mixture, and remaining soup ingredients plus remaining ½ teaspoon of salt over medium-high heat. Stir to blend. Bring just to boil, stirring frequently, turn down to simmer. Simmer 15 minutes.
Top with chopped pistachios, sesame seeds, and microgreens.
Notes
I love this soup with a grilled sandwich with Sriracha yogurt sauce, avocado, tomato, and cheese on sourdough bread.
If you use Native Forest Simple Coconut Milk (no fillers or gums added), it may be clumpy, just stir or whisk until it’s blended into soup well.