Chicken Linguine

Ingredients

• 1 lb. sliced fresh mushrooms
• 1/2 c. dry sherry
• 2 Tbsp. reduced calorie margarine, melted and divided
• 4 (4 oz.) skinned, boned chicken breast halves
• vegetable cooking spray
• 1/2 c. chopped onion
• 1/8 tsp. black pepper
• 1/4 c. plus 2 Tbsp. flour
• 3 c. canned no salt chicken broth, divided (undiluted)
• 1 (8 oz.) carton nonfat sour cream alternate
• 1 (16 oz.) pkg. linguine (uncooked)
• 1/2 c. shredded reduced-fat Monterey Jack cheese (2 oz.)
• 1/4 c. plus 2 Tbsp. grated Parmesan cheese
• 1/4 c. fine dry bread crumbs