Onion and garlic less vegetable curries are called Jain if I am right. This is a very very simple dish to make and it tasted great. Recipe source:

Here’s the steps:

• Chop a tomatoe and blend with few cashews , ginger and green chili.
• Heat oil, crack  cumin seeds,pinch of hing.
• Add blended tomatoe mix , red chili powder, turmeric powder, coriander powder and salt.Cook until oil seperates. 
• Add sliced mushrooms and corn. Add some water, cover and cook until mushrooms are cooked. I used Bella mushroom. Button mushrooms release too much water.
• Garnish with cilantro.
• Told you it’s so easy to make .
• Mushrooms have lot of health benefits and so I try to add them in fried rice and makes curry sometimes .
• Enjoy !