Colombian-style Black Beans and Potatoes

Ingredients

• 2 tablespoons avocado oil (or another neutral veg oil)
• 1 large white onion, cut into 1/2" cubes
• 2 garlic cloves, minced
• 2 russet potatoes, scrubbed and cubed
• 3 cups cooked black beans (reserve 1/2 cup cooking liquid)
• 2 Roma tomatoes, cut into 1/2" cubes
• 1 plantain, peeled and cut into 1/2" cubes
• 1 cup low-sodium vegetable broth
• 2 teaspoons cumin
• 1 teaspoon smoked paprika
• 1 teaspoon fine sea salt
• Optional: lime juice for finishing and chopped cilantro