Start by heating a little oil in a large stockpot over medium heat. Add the diced onion, chopped green bell pepper, and celery. Let them cook down for about 5 minutes, stirring occasionally, until soft and fragrant. Then, toss in your minced garlic and let that cook for another 1–2 minutes—it smells amazing!
Once the aromatics are ready, stir in the vegetable stock. Add the diced Yukon potatoes, corn, red lentils, Cajun seasoning, thyme, and salt. Give everything a good stir so the seasoning coats all the ingredients. Turn up the heat and bring it to a gentle boil.
After it begins to boil, lower the heat to medium-low and cover the pot. Let it simmer for about 10–15 minutes. Stir occasionally to keep things from sticking. You’ll know it’s ready when the potatoes are fork-tender and the lentils have softened into the broth, thickening it slightly.
Now for the creamy goodness! Pour in the full-fat coconut milk and stir well. The chowder will instantly look rich and velvety. Let it simmer for another 2–3 minutes so the flavors meld together. Taste and adjust the salt or spice level as needed.
Ladle the hot chowder into bowls and garnish to your heart’s content. I love topping mine with green onions or a sprinkle of Cajun seasoning. If you're not vegan, crispy bacon bits or shredded cheese are delicious too!