1 1/2 tablespoons olive oil
2 large onions
1 teaspoon coarse sea salt
1/4 teaspoon pepper
2 teaspoon balsamic vinegar
1 1/4 cup cubed (1/2 inch) cooked rutabaga
3/4 cup cooked greens–kale, collards, turnip greens
2 slices bacon cooked and crumbled–optional
8 large eggs, beaten