INGREDIENTS
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4 1/2-inch slices red onion
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1 large red sweet pepper, seeded and quartered
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2 5 - 6 ounces skinless, boneless chicken breast halves, cut in half horizontally
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Nonstick cooking spray
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4 thin multigrain sandwich rounds, split
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2 tablespoons basil pesto
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2 tablespoons pitted kalamata olives or black olives, chopped
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1/3 cup shredded part-skim mozzarella cheese
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1/4 cup crumbled reduced-fat feta cheese