Chicken Tetrazzini with Cheddar & Pimentos Recipe

Ingredients

• 8 oz. dry spaghetti
• 1 cup thinly sliced celery
• ½ cup diced onion
• 4 Tbsp. unsalted butter
• 8 oz. button mushrooms, sliced
• 1 cup diced green bell pepper
• 1 tsp. minced garlic
• ½ cup all-purpose flour
• 2 cups whole milk
• 8 oz. shredded sharp Cheddar
• 1 jar pimentos, diced (4 oz.)
• 2 Tbsp. Worcestershire sauce
• ⅛ tsp. ground nutmeg
• ¼ cup dry sherry
• Salt, black pepper, and red pepper flakes to taste
• 2 cups diced cooked chicken
• ¾ cup slivered almonds, toasted
• 1 cup shredded Parmesan