Chile Rajas

6 poblano chiles, roasted and peeled
1 onion, halved and cut in strips
2 to 3 tablespoons vegetable oil
8 ounces cream cheese, cut into 4 to 5 pieces
1/2 teaspoon garlic powder
Pinch of ground cumin
Salt, to taste
6 to 8 ounces Oaxaca or mozzarella, grated

Stem and seed the chiles and cut into narrow strips. Saut