1 large sweet red pepper
2 (15 ounce) cans white kidney or cannellini beans, drained and rinsed
1 medium red onion, sliced and separated into rings
1/4 cup minced fresh basil
3 tablespoons red wine vinegar
2 tablespoons olive oil
1/4 teaspoon salt
1/4 teaspoon pepper
Cut red pepper in half; remove seeds. Place pepper halves cut side down on a rack in a broiler pan. Broil 4 in. from the heat until skin blisters, about 8 minutes. Immediately place peppers in a bowl; cover and let stand for 15-20 minutes. Peel off and discard charred skin. Cut peppers into strips; place in a large bowl. Add the beans, onion and basil.
In a jar with a tight-fitting lid, combine the vinegar, oil, salt and pepper; shake well. Pour over bean mixture; toss to coat.