INGREDIENTS
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1/3 cup all-purpose flour
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2 teaspoons salt, divided
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1 teaspoon black pepper, divided
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1 1/2 pounds boneless, skinless chicken breasts, cut into 1/2-inch chunks
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4 tablespoons vegetable oil, divided
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1 onion, cut into 1-inch wedges
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1/2 pound fresh mushrooms, sliced
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1 (10-ounce) package frozen mixed vegetables
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2 cups chicken broth
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1/2 teaspoon garlic powder
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1 (12-ounce) package refrigerated buttermilk biscuits (10-12 biscuits)