Best Ever Beef Stew

Ingredients:

2 pounds beef stew meat
½ cup all purpose flour
1 tablespoon seasoning salt
2 tablespoons olive oil
½ teaspoon black pepper
1 large onion, diced
2 bay leaves
¼ cup Worcestershire sauce
2 cups water
2 heaping teaspoons beef demi-glace (or beef Swanson
Flavor Boost)
4 medium to large red skinned potatoes, washed & diced
3 large carrots, peeled & sliced
1 stalk celery, diced