VIDALIA ONION CASSEROLE

5-7 large onions sliced
Butter
Grated Parmesan cheese
Crushed Ritz cracker crumbs 

Separate the sliced onions into individual rings.
In a skillet melt enough butter to saute the onion rings. 
In a large casserole dish place a layer of the sauted onions. 
Sprinkle with the grated Parmesan cheese.
Top with crushed Ritz crackers.
Repeat the onion, cheese and cracker layer.

Bake at 350 degrees for 30 minutes.