Preheat a non-stick skillet over medium-high heat.

Warm one tortilla at a time until pliable.

Sprinkle 1/2 cup of shredded cheddar cheese on one half of each tortilla.

If using, add 1/4 cup of cooked ground beef or chicken on top of the cheese.

Fold the tortilla and gently press down with a spatula. Cook for about 2 minutes until golden brown and crispy.

Remove from the skillet, top with sour cream and salsa, and garnish with fresh cilantro before serving.