– 1 teaspoon olive oil – 1 1/2 cups chopped red pepper  – 1 cup chopped sweet onion  – 3 garlic cloves, minced – 2  cans black beans  rinsed and drained – 1  can vegetable broth – 1 1/2 cups frozen corn kernels  – 1 can mild Ro-Tel diced tomatoes and green chilie – 1 cup canned pure pumpkin  – 2 teaspoons cumin – 2 teaspoons packed brown sugar – 1 teaspoon cocoa powder – 1 teaspoon kosher salt – 1/2 teaspoon dried oregano – 1/4 - 1/2 teaspoon chipotle chile pepper