Beef Barley Soup with Spinach

Ingredients

• 2-1/2 pounds beef Stew Meat, cut into 1-inch pieces
• 5 cups water
• 1 package (.9 to 1.43 ounces) dry onion-mushroom soup mix
• 1 teaspoon dried thyme leaves
• 1/2 teaspoon salt
• 1/4 teaspoon pepper
• 1/2 cup medium pearled barley
• 4 cups loosely packed fresh baby spinach