Brown the ground beef in a large skillet and transfer it to a plate.

Heat 1 tablespoon of Asian toasted sesame dressing in the same skillet over medium-high heat.

Add the carrots to the skillet and cook, stirring, for 3 minutes, or until crisp-tender.

Stir in the remaining dressing, the cooked ground beef, and the peanut butter.

Cook for 2 minutes, or until heated through, stirring occasionally.

Spoon the beef mixture onto the iceberg lettuce leaves.

Roll up the lettuce leaves to create spring rolls.

Mix additional dressing and peanut butter with water for serving (optional).

Serve the spring rolls immediately.