Seared Greens with Red Onion and Vinegar

Ingredients

• 1 teaspoon mustard seeds 
• 0.5  onion red sliced
• 0.3 cup red wine vinegar 
• 4 servings salt and pepper 
• 1.5 pounds swiss chard red yellow coarsely chopped
• 2 tablespoons vegetable oil light

Equipment

• frying pan
• tongs

Directions

1. Heat a large skillet over high heat.
2. Add extra-virgin olive oil and onion. Sear onion and mustard seeds, 2 minutes.
3. Add greens and toss with tongs in oil. Sear greens 2 to 3 minutes.
4. Add vinegar to the pan.
5. Remove pan from heat and season greens with salt and pepper.