Green Chile Chicken and Spaghetti Squash Bake

medium or large spaghetti squash (between 3-4 pounds)

boneless, skinless chicken breasts or thighs

medium onion, peeled and quartered

salt, divided

black pepper

avocado oil

eggs

salsa verde or other runny salsa (not pico de gallo)

prepared Paleo ranch

smoked paprika

hot sauce (optional), plus more for serving

Chopped cilantro, green onions, avocado, and lime wedges, for serving