Firstly, you have to sprout the moong beans. Check this detailed method to make homemade Mung Bean Sprouts.
Once the moong sprouts are ready, rinse them in water a few times. Drain all the water.
Place the sprouts in a pan or pot or steamer pan. Add water as needed and boil or steam the sprouts till they are softened and cooked well. But make sure not to overcook them until mushy.
You can even keep them half-cooked if you want a crunchy taste.
Then, drain all of the water from the cooked sprouts.
Making sprouts salad
Take the cooked moong sprouts in a large bowl or vessel.
Add finely chopped onions and finely chopped tomatoes.
Next, add finely chopped green chilies and boiled potato cubes (optional).
Add red chili powder (or cayenne pepper or paprika) and chaat masala (optional). Mix very well.
Lastly, season with salt and pour lemon juice. Mix well.
Garnish the sprouted moong salad with coriander leaves and lemon slices..
Serve Sprouts Salad immediately.
Notes
Use moong bean sprouts that are fresh. Do not use sprouts that smell stinky or have an unpleasant odor. If they are slimy to touch or show the presence of fungus or mold, discard them.
You can adjust the seasonings according to your preferences.
Add veggies like chopped cucumber, grated carrots or beets to make the salad more nutritious and colorful. You can also choose to add unripe raw green mangoes for that bright tart taste in the salad.
Skip chaat masala if you do not have it. Add about ½ teaspoon of ground cumin powder or roasted cumin powder.
Cook the sprouts in a pan or a steamer pan. Cooking them in a pressure cooker may make them mushy and too soft.
The recipe can be scaled to make for larger servings.