Warm Chicken Sandwiches with Mushrooms, Spinach and Cheese

Ingredients

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

Preheat oven to 400°F. Pull some bread from ciabatta rolls to form slightly hollow centers. Drizzle ciabatta rolls with olive oil. Spread roll bottoms with whole grain mustard. Sprinkle roll bottoms with half of Fontina cheese. Heat 2 tablespoons oil in large skillet over medium-high heat. Add mu...

View full recipe at Epicurious