Chicken Tetrazzini for Two | America's Test Kitchen

Ingredients

• 1 slice hearty white sandwich bread , torn into pieces
• 1 tablespoon chopped fresh parsley
• 1 small garlic clove , minced
• 1/2 teaspoon grated lemon zest
• Salt and pepper
• 1 tablespoon unsalted butter , melted, plus 1 tablespoon unsalted butter
• 7 ounces white mushrooms , trimmed and sliced thin
• 1/2 cup finely chopped onion
• 2 1/4 cups chicken broth
• 1/2 cup heavy cream
• 4 ounces spaghetti , broken into thirds
• 1 teaspoon minced fresh thyme
• 2 ounces Gruyère cheese , shredded (1/2 cup)
• 1/2 cup frozen peas
• 1 tablespoon dry sherry
• 1 1/2 cups shredded rotisserie chicken