Warm Chicken Sandwiches with Mushrooms, Spinach and Cheese

from epicurious

Ingredients

  • 4 ciabatta rolls, halved horizontally
  • 3 tablespoons extra-virgin olive oil, divided, plus more for drizzling
  • Whole grain mustard
  • 8 ounces Fontina cheese, shredded, divided
  • 12 ounces sliced white mushrooms
  • 2 tablespoons chopped shallots
  • 3 garlic cloves, pressed
  • 2 cups shredded roast chicken
  • 1 5-ounce bag baby spinach

1 serving (100 grams)

~ servings