Beets.
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On the other hand, I made a great beet salad for dinner tonight. We had some red beets and some Chioggias (the pretty striped ones). I boiled and peeled them, then sliced and tossed them with a sliced apple, toasted pecans, and feta cheese, in a red wine vinaigrette with sweet onions. The beets stained everything bright pink. Beautiful and delicious.