Hearty Turkey Casserole

Ingredients

• 2 cups uncooked elbow macaroni
• 2 cups cubed cooked turkey breast
• 2 cups 2% milk
• 1 can (10-3/4 ounces) condensed cream of mushroom soup, undiluted
• 1 can (10-3/4 ounces) condensed cream of celery soup, undiluted
• 1 can (8 ounces) sliced water chestnuts, drained
• 1/2 pound process cheese (Velveeta), cubed
• 3 hard-boiled large eggs, chopped
• 1 jar (2 ounces) diced pimientos, drained
• 1 teaspoon grated onion