Mix together the ingredients for the topping and set aside. Preheat oven to 350 degrees. Oil a loaf pan with either cooking spray or oil. Rehydrate onions by soaking in 1/2 cup warm water for 15 minutes. Combine ground chuck, onion, cilantro, Taco Seasoning, celery, eggs, tortilla chips and tomato sauce in a bowl and mix thoroughly with hands. When completely combined, form into a loaf and place in loaf pan. Bake for 45 minutes on middle rack, rotating once. Remove from oven and coat with topping. Replace in oven and bake 15 more minutes. Remove from oven and let sit 10 minutes before serving.
Serve with extra topping on mashed potatoes or with our French Seasoned Steak Fries.