Spinach-Artichoke Casserole - cooking recipe

Ingredients

2 (10 oz.) pkg. chopped spinach, cooked and drained well
1 (15 oz.) can artichoke hearts, drained well
1/2 c. Parmesan cheese
1 pt. sour cream
1/2 c. chopped onion
1/4 lb. butter

Preparation

Melt butter.
Cook onions until tender.
Add rest of ingredients to onion mixture.
Pour into 11 x 13-inch casserole dish and bake at 350\u00b0 for 30 minutes.