INGREDIENTS
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1/4 teaspoon dried thyme
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Salt
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Pepper
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1 1/2 pounds chicken breasts, skinless, boneless, and cut into 1-inch chunks
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Olive oil cooking spray
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1 large onion, finely chopped
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1 can (14.5-ounce) lower-sodium chicken broth (1 3/4 cups)
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2 cloves garlic, chopped
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5 medium (about 1 pound) parsnips, peeled and thinly sliced
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3 medium carrots, thinly sliced
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3 stalks celery, thinly sliced
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6 (each 14- by 9-inch) sheets frozen phyllo, thawed
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2 tablespoons cornstarch
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1/2 cup water
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2 cups frozen peas, thawed
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1/4 cup finely chopped fresh flat-leaf parsley, plus more for garnish