Cheddar Turkey Casserole

Ingredients

• 1 cup instant rice
• 1 cup water
• 2 tablespoons instant onion
• 1/2 package frozen peas, thawed
• 2 cups cooked turkey, chopped
• 1/2 cup Cheddar cheese, shredded
• 1 can mushroom soup
• 1 can celery soup
• 1 soup can milk
• 3 tablespoons butter
• salt and pepper to taste
• additional 1/2 cup Cheddar cheese, shredded