Making Slow-Cooker Vegetarian Chili is straightforward and enjoyable. Below are the steps you’ll need to follow:

1. Prepare Vegetables: Begin by washing and chopping all your vegetables into bite-sized pieces.

2. Sauté Aromatics: In a skillet over medium heat, add olive oil. Sauté the diced onion and minced garlic for 3-4 minutes until fragrant.

3. Combine Ingredients: Transfer the sautéed onion and garlic to the slow cooker. Add diced bell peppers, carrots, celery, zucchini, black beans, kidney beans, diced tomatoes, and vegetable broth.

4. Add Seasonings: Sprinkle chili powder, cumin, smoked paprika, cayenne pepper (if using), salt, and pepper into the mixture. Stir thoroughly to ensure that all ingredients are well combined.

5. Cook: Set your slow cooker to low for 6-8 hours or high for 3-4 hours. Cover it and let the flavors meld together beautifully.

6. Check for Consistency: About 30 minutes before serving, check the chili. If you prefer a thicker consistency, remove the cover to allow it to cook down slightly.

7. Taste and Adjust: Before serving, taste the chili and adjust any seasonings as necessary, adding more salt, pepper, or spices according to your preferences.

8. Garnish: Once done, ladle the chili into bowls. Top with fresh cilantro or parsley, if desired, for a fresh touch.

9. Add Toppings: Consider adding slices of avocado or a dollop of sour cream/yogurt for a creamy contrast.

Preparing this Slow-Cooker Vegetarian Chili is not only simple, but it also allows for a great opportunity to enjoy nutritious ingredients and comforting flavors. Let the slow cooker take care of the cooking while you enjoy your day!