Mix together cream cheese, shredded Cheddar cheese, cumin, jalapenos and green onions in a medium sized bowl. Set aside.
Shape ground beef into 12 (3 oz) portions and flatten into patties with a clean, gloved hand.
Top six of the patties with a tablespoonful of cream cheese mixture. Cover with one of the remaining patties and press together with your gloved fingers to seal the edges.
Grill over medium heat until they are fully cooked. I used an indoor grill and they took about 10 minutes to cook.
Dress your burger with guacamole, sliced cheese, lettuce, tomatoes, bacon or whatever other toppings you enjoy.