Easy Vegan Omelette

Name: Easy Vegan Omelette
Ingredients: 2 tablespoons vegan butter or oil (plus more as needed); 1/2 cup chickpea flour; 3/4 cup non-dairy milk (or water, vegetable broth); 1/2 tablespoon Apple cider vinegar (or white vinegar); 1 1/2 tablespoons nutritional yeast; 1/2 teaspoon salt; 1/8 teaspoon black pepper; 1/4 teaspoon turmeric; 1/4 teaspoon onion powder; 1/4 teaspoon baking powder; 1/4 onion (chopped); 1/2 cup green bell pepper (diced); 1/2 tablespoon minced garlic; 1/2 cup grape tomatoes (chopped); 1 cup baby spinach or kale (packed); 1/2 cup vegan cheese (shredded); Avocado