1. Add oil to bottom of multi-cooker. Set multi-cooker to SAUTE or SEAR and heat until oil starts to shimmer. Add onion and garlic. Cook for 3 minutes. Add carrots and celery for an additional 3 minutes.
2. Add onion mixture, lentils, broth, diced tomatoes, salt, cumin, coriander, crushed red pepper and black pepper to multi-cooker.
3. Cover multi-cooker and set to SLOW COOK HIGH for 3 1/2 to 4 hours or LOW for 7 to 8 hours.

Serves: 10-12

Test Kitchen Tip: If your multi-cooker does not have a sauté or sear function, step 1 can be done on a stovetop.