Brazilian Black Bean Stew Recipe - Vegetarian Food from Brazil and Switzerland

Ingredients

• 1 tbsp vegetable oil
• 1 large onion , chopped
• 2 medium cloves garlic , minced
• 2 medium sweet potatoes (1 to 1.25 lb (567 g)), peeled and diced
• 1 large red bell pepper , diced
• 14.5 oz (411 g) can diced tomatoes
• 1 small hot green chile pepper , or more to taste, minced
• 2 (16 oz (454 g)) cans black beans , drained and rinsed
• 1 ripe mango , pitted, peeled and diced
• 0.25 cup chopped fresh cilantro
• 0.25 tsp salt
• swiss chard