Tasty Tuna Casserole - cooking recipe

Ingredients

1/3 c. margarine
3 Tbsp. cornstarch
1/2 tsp. salt
1/8 tsp. pepper
3 c. skim milk
1 small onion, chopped
2 (7 oz.) cans tuna, drained
1 (8 oz.) pkg. elbow macaroni, cooked and drained
1 pkg. frozen peas, thawed

Preparation

Melt margarine in saucepan over medium heat.
Stir in cornstarch, salt and pepper until smooth.
Remove from heat and gradually stir in milk.
Cook over medium heat, stirring constantly until mixture comes to a boil.
Stir in onion.
Place remaining ingredients in a greased 2-quart casserole.
Stir in cornstarch mixture.
Sprinkle cheese on top.
Bake at 350\u00b0 for 20 to 25 minutes.