Beef and Barley Soup - Corey

1 ½ lbs boneless sirloin steak
1 TBSP oil
5 c water
1 TBSP beef boullion
½ c celery, chopped
½ tsp garlic powder
1 lb mushrooms, sliced
½ tsp pepper
½ onion, chopped
1 tsp salt
1 c pearl barley

Cut meat in small pieces. Heat oil in large pot. Add meat and cook on medium high until browned. Stir in water and beef boullion. Bring to boil. Lower heat and cover. Simmer for 2 hours. Add remaining ingredients and stir. Simmer for 30 minutes.