Chicken Tetrazzini

Name: Chicken Tetrazzini
Prep time: 15 min
Cook time: 45 min
Total time: 1 h
Cuisine: American
Ingredients: 8 oz. package thin spaghetti; 1 stick butter; 1/4 cup all purpose flour; 4 cups milk; 1/2 cup chicken broth; 3 cubes chicken bouillon; 1 tsp pepper; 2 cups freshly grated Parmesan cheese (or packaged grated Parmesan cheese) (divided into 2 one cup portions to use); 4 cups cooked and shredded chicken (can use rotisserie chicken); 3/4 cup fresh mushrooms (rinsed and chopped); 3/4 cup slivered almonds; 1 tsp olive oil (optional for use when boiling spaghetti to keep it from boiling over)