Put crescent rolls in bottom of an 11 x 8-inch baking pan.
Prepare hamburger as directed on the taco seasoning package. Layer as follows: 1/2 cup crushed tortilla chips, hamburger, 1/2 cup crushed tortilla chips, sour cream and Cheddar cheese. Bake 22 minutes at 375 degrees F.
Garnish with lettuce, tomato, ranch dressing, taco sauce, etc.