Scallops with oregano

1/4 lb fresh mushrooms 1 (28 ounce) can Italian tomatoes , seeded, juice reserved 1 tablespoon olive oil 1 tablespoon butter or 1 tablespoon margarine 4[...]

2 shallots , chopped 2 cloves garlic , chopped 3 tablespoons olive oil 2 cups cherry tomatoes , halved 4 heads Belgian endive , thinly sliced 1/4 teaspoon[...]