Saute onions, bell pepper, carrots and celery in avocado oil on medium heat until they begin to soften. Typically, no more than 10 minutes.
Add in water (or veggie broth), beans, tomatoes and all seasoning and stir to combine. Cover and let simmer for 30 minutes.
After 30 minutes, use your potato masher to crush the softened veggies and beans. (If you like your chili on the chunky side, skip this step.)
Stir in cooked lentils, frozen (or fresh corn) and any other additions.
Enjoy!