Spinach-Artichoke Au Gratin - cooking recipe

Ingredients

2 Tbsp. margarine
1/2 onion, chopped
2 Tbsp. flour
3/4 cup milk
15-oz. can drained spinach
1 can artichoke hearts
2 oz. parmesan cheese
1/2 cup sour cream
2 oz. cheddar cheese

Preparation

Melt margarine; add onions and saute.
Add flour and stir until blended.
Add milk and bring to a slow boil.
Add spinach and artichokes.
Cook for 10 minutes.
Add cheeses and cook 10 minutes more.
Season to taste.