Temper spices: Heat oil in a saucepan over a medium flame. Temper mustard seeds, cumin seeds, curry leaves, and grated ginger in the oil.
Sauté Vegetables: Add and sauté onion until translucent, then add and cook tomatoes until soft.Add diced carrots and green peas, sprinkle with salt, and add turmeric powder and red chili powder. Sauté, cover, and cook for 3-4 minutes. Cook Oats: Add rolled oats and water. Combine, cover, and cook for 6-7 minutes over medium heat. Garnish with chopped coriander leaves.
Serve: Serve warm, delicious, savory oatmeal with Greek yogurt or as is. Enjoy!