Vegan Chili

Name: Vegan Chili
Prep time: 10 min
Cook time: 40 min
Total time: 50 min
Yield: 6
Ingredients: Ingredients; 1 tablespoon olive oil; 1 medium onion, chopped; 3 cloves garlic, minced; 1 red bell pepper, diced; 1 green bell pepper, diced; 2 carrots, chopped; 2 celery stalks, chopped; 1 (15 oz) can black beans, drained and rinsed; 1 (15 oz) can kidney beans, drained and rinsed; 1 (15 oz) can pinto beans, drained and rinsed; 1 (28 oz) can crushed tomatoes; 2 tablespoons tomato paste; 1 cup vegetable broth; 2 teaspoons chili powder; 1 teaspoon ground cumin; 1 teaspoon smoked paprika; 1/2 teaspoon oregano; 1/4 teaspoon cayenne pepper (optional, for heat); Salt and black pepper, to taste; 1 tablespoon maple syrup or sugar (optional, for balance)