We love this, even made with leftover turkey from Thanksgiving. I first heard of it in the 70s. However, since we now know about not using margarine and watching the sodium in foods, I have modified the recipe to use olive oil, to saute the veggies, adding a fresh green chili, chopped. Then use a "no salt added" can of diced tomatoes, and low sodium soups with corn tortillas, and real cheddar cheese. The recipe using rotel, velveeta and corn chips is outrageously unhealthy in fat, salt, and chemicals. I dont find the modified recipe any more time consuming or expensive to make, is a lot healthier and tastes better.