Spoons up, bowls out! You may want to consider doubling the recipe for Cajun Lentil Stew immediately - it's not always easy to find a tasty meal that's both fiery and family-friendly. Build your base by sauteeing Cajun mirepoix. Layer in Cajun Seasonings to build flavor. Add lentils, along with the rest of your veggies, and simmer in broth. Cover, cook, and serve warm with additional seasoning to taste.
Heat a dutch oven or 6-quart soup pot over medium high heat. Add the oil and heat until it shimmers. Add the peppers, onions, and celery and saute, stirring occasionally, until the onion is translucent, 8 minutes.
Add the garlic and cajun seasoning and cook, stirring continuously, until very fragrant, 1-2 minutes.
Add the tomatoes, lentils, sweet potato and broth and give everything a good stir. Increase the heat to high until the liquid starts to simmer, then reduce to medium or medium low to maintain a brisk simmer. Cover and cook until the lentils are cooked through and the sweet potatoes are tender, 30-35 minutes.
Season with salt and pepper (start with ½ tsp each, and increase to taste). Serve immediately, garnished with chopped parsley if desired.