Preheat the oven to 375°F. Line a large baking sheet with parchment paper.
Add the ground beef to a large skillet over medium-high heat. Cook for eight to ten minutes, breaking the meat into small crumbles, until browned and cooked to 160°F.
Drain excess grease. Add the taco seasoning and stir over low heat for one minute. Remove from the heat and allow the beef to cool for five to ten minutes.
Unroll the refrigerated crescent dough sheets. Cut each sheet lengthwise into four long strips, making eight strips total.
Divide the cooked ground beef evenly among the strips, placing it in a narrow line down the center of each strip.
Sprinkle the shredded cheddar cheese evenly over the beef.
Bring the long edges of each strip together and pinch firmly to enclose the filling. Seal the ends to form a filled dough tube.
Gently tie each tube into a loose overhand knot, tucking the ends underneath. Place seam-side down on the prepared baking sheet.
Bake for 18 to 22 minutes, until the pastry is golden brown and fully cooked.
Remove from the oven and allow the knots to cool for five minutes before serving warm.