Veggie Spaghetti {One Pot 30-Minute Meal}

Ingredients

• 2 tablespoons olive oil
• 1 large onion (chopped)
• 1 medium zucchini (halved lengthwise, then sliced)
• 1 medium summer squash (halved lengthwise, then sliced)
• 1 teaspoon salt
• ¾ teaspoon black pepper
• 3 garlic cloves (minced)
• 1 pint cherry tomatoes
• 1 tablespoon Italian seasoning
• ¼ cup tomato paste
• 1 14.5 ounce can fire roasted diced tomatoes
• 5 cups water
• 1 pound dried spaghetti
• ½ cup freshly grated Parmesan cheese (optional)
• Fresh basil (for serving)