Beef Pot Pie

Ingredients

• 1/2 c. all-purpose flour
• 1/4 c. instant nonfat dry milk powder
• 1 tsp. dry mustard
• 1 c. water
• 1 Tbsp. Worcestershire sauce
• 1 (10 1/2 oz.) can beef broth (undiluted)
• 1 c. chopped onion
• 1 lb. 93% ultra-lean ground beef
• vegetable cooking spray
• 1 Tbsp. dried parsley flakes
• 1/2 tsp. garlic powder
• 1/2 tsp. pepper
• 1/4 tsp. dried thyme
• 1 (16 oz.) pkg. frozen New England style sweet peas, potatoes and carrots, thawed
• 1 (6 oz.) jar sliced mushrooms, drained
• 1 (4.5 oz.) can refrigerated buttermilk biscuits