Posted on May 2, 2021 For a fun and flavorful baked fiesta, cook ground beef and chopped onions with tomato soup, diced tomatoes and taco seasoning mix. Add cooked macaroni and bake with a scrumptious topping of corn chips, Cheddar and Monterey Jack cheese! For a fun and flavorful baked fiesta, cook ground beef and chopped onions with tomato soup, diced tomatoes and taco seasoning mix. Add cooked macaroni and bake with a scrumptious topping of corn chips, Cheddar and Monterey Jack cheese! Advertisement