Finely chop the onion.
Heat olive oil in a cooker and add the chopped onion with a pinch of salt. Fry for 1 minute.
Add the lentils, and the spices. Mix the ingredients and let them fry for 1 to 2 minutes.
Add the water and cover the cooker. When it starts boiling turn down the heat and simmer for 20 minutes.
Add the tomato paste and simmer for 5 more minutes. Bon Appétit!