In a large pot or Dutch oven, combine tomatoes, beans, 2 cups of water, peppers, onions, dry lentils, tomato paste, chili powder, garlic powder, cumin and the salsa. Bring to a boil, reducing the heat to low and simmering for 40 minutes, stirring occasionally.
Season with salt and pepper if needed. Serve with desired toppings such as sour cream, green onions, and cheese.