Vegan Black Bean Tamale Casserole

Name: Vegan Black Bean Tamale Casserole
Ingredients: 1 tablespoon olive oil; 1 onion, chopped; 2 garlic cloves, minced; 1 red bell pepper, chopped; 1 jalapeno pepper, seeded and minced (optional); 1 15 oz can black beans, rinsed and drained; 1 1/2 cups corn (canned, frozen or fresh); 1 15 oz can diced tomatoes, drained; 2 tablespoons maple syrup (optional); 1 1/2 tablespoon chili powder; 1/2 teaspoon ground cumin; 1/2 teaspoon smoked paprika; salt and pepper to taste; 1 cup cup cornmeal; 1 cup all-purpose flour; 1 tablespoon baking powder; 1/2 teaspoon salt; 1/2 cup unsweetened plant-based milk; 1/2 cup water or broth; 1/3 cup vegetable oil