Update spinach_pasta.md

Author: ReginaSouza321

content/recipes/spinach_pasta.md

@@ -21,7 +21,8 @@
 ## Ingredients
 
 - 500 g (1 lb) linguine or spaghetti
-- 800 g (1 1/2 lb) fresh spinach leaves 
+- 800 g (1 1/2 lb) fresh spinach leaves
+- 1/2 sweet onion (fried in 1 tbsp butter)
 - 60 g (2 oz, 4 tbsp) butter
 - 60 g (2 oz, 1/4 cup) flour
 - 500 ml (16 fl oz) milk
@@ -33,7 +34,7 @@
 ## Instructions
 
 1. Wash the spinach.
-2. Put a handful on the side and cook the rest very quickly in a covered saucepan. It will take about 5 minutes. Do not add water.
+2. Put a handful on the side. Fry the onion in 1 tbsp of butter and cook the rest very quickly in a covered saucepan. It will take about 5 minutes. Do not add water.
 3. Drain well, keeping the liquid to use later.
 4. Chop the spinach very finely and keep warm.
 5. Make a bechamel sauce.