Wash the moong dal thoroughly and soak it in water for at least 2 hours. Drain completely before blending.
Add soaked moong dal, ginger, green chilli, and a few tablespoons of water to a blender. Blend into a smooth yet slightly thick batter.
Transfer the batter to a bowl. Add onion, grated carrot, coriander leaves, cumin seeds, turmeric powder, black pepper, and salt. Mix well.
Heat a non-stick pan or tawa over medium heat. Lightly grease with oil if required.
Pour small spoonfuls of batter onto the pan to form mini chillas. Spread slightly to create bite-sized rounds.
Cook for 2–3 minutes until the bottom becomes golden brown. Flip carefully and cook the other side until crisp.
Serve immediately with mint chutney, coriander chutney, yogurt dip, or tomato salsa.