Boy, Oh Boy, Black Bean Salad

By 5flipgirl

3.6 / 5

10min

20min

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2 tablespoons extra-virgin olive oil
1 onion thinly sliced
1 teaspoon kosher salt
½ teaspoon red pepper flakes
½ teaspoon ground black pepper
2 cloves garlic chopped
1 (15 ounce) can black beans drained
1 (10 ounce) can diced tomatoes with green chile peppers
1 (10 ounce) bag fresh baby spinach