Vegetarian Meatballs and Mushroom Gravy Recipe

Name: Vegetarian Meatballs and Mushroom Gravy Recipe
Ingredients: 1 (15-ounce) can chickpeas, rinsed and drained; 1 cup breadcrumbs; ½ cup diced red onion, divided; 2 garlic cloves, minced; 2 tablespoons avocado oil; 1 large egg; 3 tablespoons soy sauce, divided; 1 tablespoon tomato paste; 1 ½ teaspoon salt, divided; ½ teaspoon cumin; ¼ teaspoon pepper; 3 tablespoons butter; 16 ounces cremini mushrooms, thinly sliced; 3 tablespoons all-purpose flour; 1 cup vegetable broth; 1 tablespoon white miso paste; 1 tablespoon Worcestershire sauce; 1 teaspoon dried thyme; ½ teaspoon garlic powder