In a Dutch oven, sauté onion and carrots in oil for 3 minutes. Add chilies powder, garlic, cumin, and oregano; cook for 1 minute longer.
Stir in broth and lentils. Bring to a boil. Reduced heat; cover and simmer for 18 to 22 minutes or until lentils are tender.
Stir in the tomatoes, potatoes, kidney beans, salt, and pepper. Return the stew to a boil
Reduce the heat; cover the stew and simmer for 10 to 15 minutes longer or until potatoes are tender