Butternut Squash With Pistou without agave garlic

1 1/2 pounds butternut squash or other winter squash 3/4 teaspoon olive oil or canola oil 3 stalks celery chopped * 2 small onion diced 2 small carrots diced[...]

2 butternut squash, halved lengthways and seeds scraped out 1 tablespoon olive oil 1 red onion , chopped 2 red chili peppers , deseeded and finely chopped 2[...]