Quick and Easy Cream of Spinach Soup

• 1/3 cup butter
• 1/3 cup chopped onion
• 1/3 cup all-purpose flour
• 1 tsp. salt
• 1/4 tsp. black pepper
• Dash ground nutmeg
• 4 1/4 cups milk
• 1 pkg. (10 oz.) frozen chopped spinach, thawed and water squeezed out

In a large saucepan melt the butter; add the chopped onion. Cook, stirring, over medium heat until the onion is tender. Stir in the flour, mixing well to avoid lumps. Add the salt, pepper, and nutmeg. Gradually blend in the milk while stirring. Continue to cook, stirring, for about a minute or two until thickened. Stir in the spinach and remove from the heat.