1) In a large saucepan, combine oil, onion and salt at medium-high heat. Cook until onion starts to brown, around 5 minutes or so.

2) Add garlic, ginger and Garam Masala , cook until fragrant, about 1 minute.

3) Add lentils, coconut milk and water. Bring to a boil, then reduce heat to low and simmer, partially covered until lentils are fully tender and broken down to an almost paste-like consistency, about 25-30 minutes.

4) Add lime juice and cilantro. Check for seasoning.

5) Serve (over rice if you like), topped with the diced tomatoes.