You can place these in the oven simultaneously with the lamb; in fact, they can be arranged around the roast on the same pan.
Cooking Light DECEMBER 2000
Preheat oven to 400°.
Arrange onions, cut sides down, in a 13 x 9-inch baking pan or on a broiler pan coated with cooking spray. Combine oil and remaining ingredients in a small bowl; stir with a whisk. Drizzle onions with oil mixture. Bake at 400° for 1 1/2 hours or until very tender.
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