These edible leaves provide protein, calcium, fiber, beta carotene, vitamins A and C, and some B vitamins.
- Heat the oil over medium high heat till it stops sizzling.
- Add onions and reduce the heat to medium-low.
- Cook slowly, stirring occasionally, until golden brown and caramelized, about 30 minutes.
- Add the thyme, rosemary, garlic, salt, and pepper, and vinegar stir well to combine.
- Cook for 5-15 more minute.
- Add beet greens just to wilt.