Kale with White Bean + Mushroom - barre3

Ingredients

• 1/2 onion, finely chopped
• 2 garlic cloves, chopped
• 10 mushrooms, stems trimmed
• 1 bunch lacinato/black kale, rinsed, tough rib removed, and torn into pieces
• 1 can white beans, rinsed
• 1 tbsp apple cider vinegar (optional)
• Olive oil
• Sea salt and pepper, to taste