Company Squash Casserole - cooking recipe

Ingredients

1 lb. (about 3 medium) yellow squash, chopped
1 medium onion, chopped
5 Tbsp. margarine, divided
2 Tbsp. all-purpose flour
1 c. milk
5 slices American cheese, chopped
1 (3 oz.) can sliced mushrooms, drained
1/2 c. cracker crumbs
1/2 c. chopped pecans

Preparation

Place squash and onion in boiling salted water to cover. Cover and cook 5 minutes; drain well and set aside.