Stir in the tomato paste and cook for 1 minute. Then add the lentils, crushed tomatoes, vegetable stock, bay leaf, and uncooked brown rice to the pot.
1 tablespoon tomato paste
2 cans (14 oz / 400 g) green lentils
1 can (14 oz / 400 g) crushed tomatoes
6 cups vegetable stock
1 bay leaf
1 cup brown rice