Salads with vinegar

1 red bell pepper , halved 1 yellow bell pepper , halved 1 green bell pepper , halved 12 ounces whole wheat ziti 3 tablespoons olive oil 3 tablespoons white[...]

3 tablespoons extra virgin olive oil 1 tablespoon red wine vinegar 1 1/4 cups chopped seeded plum tomatoes or 1 1/4 cups cherry tomatoes 1 cup diced seeded[...]

375 ml chicken stock or 375 ml water 250 ml whole wheat couscous 425 g canned black beans , rinsed and drained 3 pickled green chilies, chopped 1 green pepper[...]