Pasta with Blue Cheese Sauce

1 tablespoon blue cheese
2 tablespoons light cream cheese
1 tablespoon sherry
1 large onion
1 cup chopped tomato
2 cups pasta (penne or rotini work well)
2 teaspoons each parsley, basil & oregano
1/2 teaspoon each salt & pepper

Preheat oven to 350F degrees. Roast onion in oven for half an
hour or until tender. Allow to cool. Peel and quarter. In blender,
blend onion, blue cheese, cream cheese and sherry until very
smooth. Cook pasta in salted boiling water until done.
Drain & toss with tomatoes, herbs, salt and pepper.
Stir in sauce and serve.