5. Heat the other tablespoon of olive oil in an extra large pan over medium-high heat. Add onion and sauté for five minutes. Then add the wine and vinegar and sauté for another two minutes. Chop the grilled veggies and add to the pan. Saute and stir consistently for an additional two minutes. This is the perfect recipe to open a bottle of red wine for. Pairs nicely with the grilled flavors and you only have to give up two tablespoons for cooking.