Lay out the whole wheat tortillas on a clean surface.
Spread a generous spoonful of the avocado mixture onto each tortilla.
Place a portion of the cooked beef on top of the avocado spread on each tortilla.
Add shredded lettuce, sliced red onion, diced tomato, and grated cheddar cheese (if using) evenly over the beef.
Optionally, sprinkle fresh cilantro leaves on top for extra flavor.
Fold in the sides of the tortilla and then roll it up tightly from the bottom, creating a wrap.
Slice the wraps in half diagonally and serve immediately.Enjoy your delicious Beef and Avocado Wraps!