You'll begin by preparing the ground beef according to the taco seasoning directions.
While the meat cooks, you'll mix the sour cream and salsa together in a small bowl. In another small bowl, you'll mix the corn and taco seasoning together.
When it's time to pack your lunch, you want to separate foods that would cause other foods to get soggy. For example, you don't want the sour cream and lettuce by each other before you're ready to eat.
Place the ground beef and sour cream/salsa mix by each other. Next, the corn and beans work well together. Add the lettuce next -- you'll want to make sure the lettuce is completely dry before getting started. Finally, place the flour tortilla shapes in their own little divided section.
When the time to eat just mix it all together, add any toppings you want and enjoy with the flour tortilla shapes.