I topped this soup with leftover Tandoori chicken to go with the Indian spices in the broth. See notes below for a link to that recipe or use any cooked chicken.
Put lentils in a bowl, cover with water and soak while preparing chicken and soup. *
RED LENTIL SOUP
Heat oil in soup pot on medium. Add onion and red pepper and cook until softened, about 5 minutes.
Add spices and cook stirring for 1 minute.
Drain and rinse lentils. Add chicken broth, lentils and tomato paste to soup pot. Bring to a boil. Reduce heat, cover and simmer for 20-30 minutes or until lentils are cooked.
Add cilantro. Taste and adjust seasoning.
SERVING
Serve soup in bowls. Drizzle with yogurt and sprinkle with chopped cilantro. Finish with cooked chicken pieces if desired.
Notes
*Soaking lentils isn't necessary but it decreases the cooking time slightly and is easy if you do it as the first step when making this recipe.