Cuban Black-Bean Stew with Rice

INGREDIENTS

• 1 1/2 cups long-grain white rice
• 1 tablespoon olive oil
• 1 medium red onion, chopped
• 1 garlic clove, minced
• 1 red bell pepper (ribs and seeds removed), chopped
• 2 cans (19 ounces each) black beans, rinsed and drained
• 1 can (14.5 ounces) vegetable broth
• 1 tablespoon cider vinegar
• 1/2 teaspoon dried oregano
• Coarse salt and ground pepper
• Garnishes (optional): lime wedges, fresh cilantro, and sliced radishes