Cook the ground beef in a large skillet over medium heat until browned. Drain excess fat, stir in the taco seasoning, and cook for 2 more minutes until the meat is evenly coated. Set aside to cool slightly.
In a large mixing bowl, combine the romaine lettuce, diced tomatoes, black beans, and 1 cup of the shredded cheddar cheese. Add the cooled beef and toss gently to distribute everything.
Spoon the salsa over the salad and toss once more so the flavors blend without making the lettuce soggy.
Transfer the salad to a serving dish. Select 8 to 10 of the sturdiest tortilla chips to use as tombstones. Pipe or spread a small amount of sour cream on each chip to create simple "RIP" letters or crosses.
Insert the decorated chips upright into the salad so they stand like gravestones. Sprinkle the remaining cheddar cheese over the top to resemble loose dirt around the base of the chips.