Heat 2tsp oil in a small saute pan, add the onions and green chilies and saute till onions are transparent.
Next add the mixed veggies and cook covered till done.
Stir in the chopped tomatoes, turmeric, red chili powder and salt. Cook till tomatoes get mushy.
Finally add the garam masala, mix well and turn off the heat.
Preheat the broiler and line a baking sheet with foil.