1. Brown the beef with the minced onion. Then in a cup mix the cumin, chilli powder, onion and garlic powder and salt and pepper with the water. Pour over the browned ground beef and let simmer for 5 - 10 minutes or until all the liquid is evaporated.
2. In a large mixing bowl, mix the cheddar, mozzarella and parmesan cheeses. Divide the cheese mixture into 6 then make balls. Place onto a parchment paper lined baking sheet. Bake @ 400 F for 6-8 minutes, or until the edges are golden brown.
3. Let cool for 1- 2 minutes. Flip upside down, then place a few spoonfuls of the beef on the edge of each shell. Tightly roll each one into a cigar shape. (You need to do this quite quickly, before the cheese hardens)
Note: Do not use wax paper. Only parchment paper will work. The cheese will stick to wax paper.