Preheat oven to 400f. Cut off top and bottom on squash (use a very sharp knifthen cut down the middle.
Scrape out seeds and discard (or you can roast them!) Drizzle and rub with 1 Tbs olive oil, inside and out. Then sprinkle with salt & pepper.
Place cut side down on parchment paper and bake for 40-50 minutes (depending on oven). Check with a fork when done. Should be soft.
Prepare chickpea salad, in a large bowl combine chickpeas, pepper, onion, olives, chopped basil & parsley, lemon juice, 1 Tbs olive oil, and salt. Combine everything well and set aside.
For the pesto, in a food processor add all ingredients except olive oil. Begin to process slow and then slowly add in oil. Stop to scrape down sides as needed. Continue until well blended.
Once the squash is cooked through and cooled to handle, run a fork in the middle to make it spaghetti like then add filling to squash bowl. Top with pesto dressing and dig in!!
If using for meal prep, store squash, filling and pesto separately and assemble when ready to eat.