Vegan (Say What?!) Gumbo

Name: Vegan (Say What?!) Gumbo
Prep time: 30 min
Cook time: 2 h
Total time: 2 h 30 min
Cuisine: Southern
Ingredients: 1 tablespoon canola oil; 1 onion, chopped; 2 green bell pepper, chopped; 8 stalks celery, chopped; 6 cloves garlic, minced; 0.33333334326744 cup canola oil; 0.5 cup all-purpose flour; 1 cup vegetable broth; 1 (14.5 ounce) can diced tomatoes; 1 eggplant, peeled and chopped; 6 cups chopped okra; 1 (15 ounce) can red beans, drained and rinsed; 2 teaspoons salt; 2 teaspoons dried thyme; 1 teaspoon dried basil; 1 teaspoon gumbo file powder; 1.5 teaspoons cayenne pepper; 1.5 teaspoons ground black pepper; 0.5 teaspoon paprika; 0.25 teaspoon ground cumin; 0.25 teaspoon liquid smoke flavoring; 2 bay leaves; 4 cups vegetable broth, divided