INGREDIENTS
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1 pound boneless, skinless chicken breasts, trimmed
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3/4 teaspoon kosher salt, divided
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1/2 teaspoon ground pepper, divided
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4 diagonal slices baguette (1 inch thick)
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1/2 cup shredded aged Cheddar cheese
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3 tablespoons grapeseed oil or canola oil
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2 tablespoons cider vinegar
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1 tablespoon whole-grain mustard
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1 head escarole (about 1 pound), torn into bite-size pieces
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3 cups sliced sweet, crunchy apples (about 2 medium), such as Hudson’s Golden Gem or Honeycrisp
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1/4 cup slivered red onion