Prepare the Batter: In a mixing bowl, whisk together chickpea flour, water, non-dairy milk, turmeric, garlic powder, black salt, baking powder, salt, and pepper until smooth. Let the batter rest for 5 minutes to thicken.
Cook the Omelette: Heat olive oil in a non-stick skillet over medium heat. Pour the chickpea batter into the skillet, spreading it evenly.
Add Veggies: Sprinkle the chopped veggies over the omelette. Cook for 4-5 minutes on one side until the edges start to firm up and the bottom is golden brown.
Flip & Finish: Gently flip the omelette and cook for another 2-3 minutes until the other side is cooked through.
Serve: Slide the omelette onto a plate, garnish with fresh herbs if desired, and enjoy!