Preheat oven to 375, grease 11x7 baking dish. Prepare rice. Cook ground beef and onion until brown and crumbled; drain. Stir in rice, seasoning mix, Rotel™ and taco sauce. Heat until warmed through. Layer half of the broken taco shells on bottom of baking dish. Cover with half of the meat mixture; sprinkle with half the shredded cheese. Repeat with remaining ingredients. Cover and bake for 25 minutes until cheese is melted and bubbly. Remove cover, and broil an additional 5 or so minutes to make cheese golden brown.
Remove, allow to cool 5 minute before serving. Serves 6-8
*you can use the "taco blend" variety or just plain mild cheddar instead