2 teaspoons olive oil |
4 cups chopped onion (about 2 large onions) |
3/4 teaspoon chopped fresh thyme |
1/2 cup light sour cream |
1/3 cup (about 1 1/2 ounces) grated parmigiano-reggiano cheese |
1/3 cup (3 ounces) 1/3-less-fat cream cheese |
1/3 cup reduced-fat mayonnaise |
1/4 teaspoon salt |
1/4 teaspoon freshly ground black pepper |
1/4 teaspoon hot pepper sauce (such as tabasco) |
1/4 teaspoon worcestershire sauce |