What's the Recipe for Instant Pot Turkey Meatball Vegetable Soup?

Ingredients

• 2 lbs lean ground turkey
• 1 egg, beaten
• 1 teaspoon Italian Seasoning
• 1 teaspoon salt divided
• 1 teaspoon avocado oil
• 1/4 onion, diced
• 2 stalks celery, diced
• 8oz baby bella mushrooms, diced
• 1 bell pepper, chopped
• 1 zucchini, chopped
• 1 garlic clove, minced
• 8 cups water
• 2 cups baby spinach leaves