INGREDIENTS
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Nonstick cooking spray
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12 square wonton wrappers
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1 medium red onion
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1/2 teaspoon chopped fresh ginger
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2 teaspoons spicy brown mustard
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2 teaspoons red wine vinegar
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1/8 teaspoon crushed red pepper flakes
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1 tablespoon canola oil
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Kosher salt and freshly ground black pepper
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1 (5-ounce) can chunk light tuna, drained
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1 1/2 cups snow peas