Start by dicing the onion and adding it to a hot pan set over medium heat. Add a good pinch of salt. Cook for about 5 minutes, until softened.
While onions cook, open cans, measure out seasoning, and mince garlic. Add garlic and seasoning to softened onions. Stir for about 1 minute
Add in the coconut milk, tomatoes, and lentils. Using of the cans, fill it with water and add to pot along with the tamari.
Bring to a boil then reduce heat and simmer on low to medium for about 45 minutes. You may need to add more water. Stir occasionally.
Serve with steamed vegetables, jasmine rice, maybe some greens stirred in. A dollop of yogurt is delicious on top.