Place beef in freezer for 45 minutes to an hour until firm but not frozen through.
Meanwhile, whisk egg yolk, lemon juice and Dijon together in a large bowl.
Remove the beef from the freezer and finely dice it into ¼” pieces. Add to the large bowl along with the remaining ingredients (except the potato chips). Stir gently to coat.
Place tartare onto a large serving platter and serve with chips.