Warm Chicken Sandwiches with Mushrooms, Spinach and Cheese

Ingredients

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

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