Salad Kangkung Balsamic Hangat

Bahan-bahan (2 porsi)

• 2 tablespoons butter
• 1/4 cup diced onion
• 1 red pepper, diced
• 1 yellow pepper, diced
• 8 oz . baby portobello mushrooms, sliced
• 4 cups kale
• 1 teaspoon garlic, minced
• 1 tablespoon balsamic vinegar
• 1/4 cup Asiago cheese
• salt and pepper to taste