Spinach Casserole - cooking recipe

Ingredients

3 pkg. frozen chopped spinach, cooked with butter and drained
1 can cream of mushroom soup
2 eggs, beaten
1 chopped onion
1 c. grated Cheddar cheese
1 c. mayonnaise

Preparation

Combine all ingredients.
Cover with bread crumbs.
Dot with butter.
Bake, uncovered, at 350\u00b0 for 45 minutes.