Ingredients 

• 2 tablespoons olive oil

• 1/2 yellow onion, thinly sliced

• 1/4 teaspoon salt

• 1/4 teaspoon pepper

• pinch of red pepper flakes

• 1 bunch rainbow chard, washed, dried and chopped

• juice from 1/2 an orange

Instructions 

• Heat a large sauté pan over medium heat. Add the olive oil, onion, salt, pepper and red pepper flakes. Slowly caramelize the onions, about 10-15 minutes stirring occasionally.

• When the onions are golden brown and caramelized, add the rainbow chard. Toss with the onions. Cook until the chard just begins to soften, about 2-4 minutes. Add the juice from the orange. Toss, and cook another 2 minutes. Taste for salt and pepper. Serve warm.