Warm the large pot over medium heat. Add the olive oil and then add the onion and carrots. Stir and cook for about 10 minutes or until you see the vegetables lightly brown. You should also see a fond (brown layer) form on the bottom of the pot.
Add the garlic, cumin, curry powder, and chives to the pot. Stir and cook for about two minutes or until you see that everything is mixed well.
Add the tomatoes, stir, and let cook for about three more minutes.
Add the lentils, broth, water, salt, and red pepper flakes. Stir everything together well. Increase the heat on your stovetop to high. Bring the liquid in the pot to a boil. Once boiling, partially cover the pot, reduce the heat to low/medium low and allow to cook for 25 minutes.
Add the kale, ground pepper, and lemon juice. Cook for five more minutes.
Turn off heat and divide portions into bowls. Enjoy!