Ham Casserole - cooking recipe

Ingredients

1 (16 oz.) pkg. rigatoni
2 Tbsp. salad oil
1 small onion, chopped
1/3 c. flour
1 qt. milk
1/2 lb. Mozzarella cheese, grated
1 (10 oz.) pkg. frozen peas
1/2 lb. cooked ham, diced

Preparation

Following package directions, cook and drain rigatoni.
Cook onion in oil until tender.
Add flour; cook 1 minute.
Add milk; stir with a whisk.
Add 1/2 of the cheese and the noodles, then put in peas and ham.
Mix good and put in casserole dish.
Top with rest of cheese.
Bake at 350\u00b0 for 25 to 30 minutes.