Spaghetti Squash with Paleo Meat Sauce

INGREDIENTS

• 1/4 cup water
• 1 spaghetti squash, halved lengthwise and seeded
• 1 1/2 pounds ground beef
• 1 white onion, diced
• 1 tablespoon extra-virgin olive oil
• 1 cup sliced mushrooms
• 1 zucchini, diced
• 1 green bell pepper, chopped
• 1 red bell pepper, chopped
• 1 (14.5 ounce) can crushed tomatoes
• 1 (8 ounce) can crushed tomatoes
• chopped fresh basil, or to taste
• 1/4 cup chopped fresh oregano, or to taste
• 1/4 cup chopped fresh thyme, or to taste
• 1 tablespoon red pepper flakes, or to taste
• 1/2 cup extra-virgin olive oil, divided